diff --git a/data/neurons/striatum/chin/str-chin-e170614_cell6-m17JUL301751_170614_no6_MD_cell_1_x63-v20190710/meta.json b/data/neurons/striatum/chin/str-chin-e170614_cell6-m17JUL301751_170614_no6_MD_cell_1_x63-v20190710/meta.json
index bc1ff3ff..7d4fd9d7 100644
--- a/data/neurons/striatum/chin/str-chin-e170614_cell6-m17JUL301751_170614_no6_MD_cell_1_x63-v20190710/meta.json
+++ b/data/neurons/striatum/chin/str-chin-e170614_cell6-m17JUL301751_170614_no6_MD_cell_1_x63-v20190710/meta.json
@@ -2,7 +2,7 @@
     "p05cfd367": {
         "m92fb243d": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -14,7 +14,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-10e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -33,4 +33,4 @@
             ]
         }
     }
-}
+}
\ No newline at end of file
diff --git a/data/neurons/striatum/dspn/str-dspn-e150602_c1_D1-mWT-0728MSN01-v20211026/meta.json b/data/neurons/striatum/dspn/str-dspn-e150602_c1_D1-mWT-0728MSN01-v20211026/meta.json
index 0fea1a9e..d60af4b5 100644
--- a/data/neurons/striatum/dspn/str-dspn-e150602_c1_D1-mWT-0728MSN01-v20211026/meta.json
+++ b/data/neurons/striatum/dspn/str-dspn-e150602_c1_D1-mWT-0728MSN01-v20211026/meta.json
@@ -2,7 +2,7 @@
     "p1863c9a5": {
         "m22be6817": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -14,7 +14,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -35,7 +35,7 @@
         },
         "m37886c78": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -47,7 +47,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -68,7 +68,7 @@
         },
         "m9fda9b20": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -80,7 +80,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -101,7 +101,7 @@
         },
         "mbb8e5b24": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -113,7 +113,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -134,7 +134,7 @@
         },
         "mc710c1a4": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -146,7 +146,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -167,7 +167,7 @@
         },
         "mf702205f": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -179,7 +179,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -202,7 +202,7 @@
     "p510bab86": {
         "m22be6817": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -214,7 +214,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -235,7 +235,7 @@
         },
         "m37886c78": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -247,7 +247,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -268,7 +268,7 @@
         },
         "mbb8e5b24": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -280,7 +280,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -301,7 +301,7 @@
         },
         "mc710c1a4": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -313,7 +313,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -334,7 +334,7 @@
         },
         "mf702205f": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -346,7 +346,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -369,7 +369,7 @@
     "p7517a0e9": {
         "m22be6817": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -381,7 +381,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -402,7 +402,7 @@
         },
         "m37886c78": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -414,7 +414,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -435,7 +435,7 @@
         },
         "m9fda9b20": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -447,7 +447,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -468,7 +468,7 @@
         },
         "mbb8e5b24": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -480,7 +480,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -501,7 +501,7 @@
         },
         "mc710c1a4": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -513,7 +513,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -534,7 +534,7 @@
         },
         "mf702205f": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -546,7 +546,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -569,7 +569,7 @@
     "p7aa400d6": {
         "m22be6817": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -581,7 +581,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -602,7 +602,7 @@
         },
         "m37886c78": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -614,7 +614,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -635,7 +635,7 @@
         },
         "m9fda9b20": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -647,7 +647,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -668,7 +668,7 @@
         },
         "mbb8e5b24": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -680,7 +680,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -701,7 +701,7 @@
         },
         "mc710c1a4": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -713,7 +713,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -734,7 +734,7 @@
         },
         "mf702205f": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -746,7 +746,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -769,7 +769,7 @@
     "p8bf90d1f": {
         "m22be6817": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -781,7 +781,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -802,7 +802,7 @@
         },
         "m37886c78": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -814,7 +814,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -835,7 +835,7 @@
         },
         "m9fda9b20": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -847,7 +847,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -868,7 +868,7 @@
         },
         "mbb8e5b24": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -880,7 +880,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -901,7 +901,7 @@
         },
         "mc710c1a4": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -913,7 +913,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -934,7 +934,7 @@
         },
         "mf702205f": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -946,7 +946,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
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                     "frequency": 1.0,
                     "generator": "poisson",
@@ -969,7 +969,7 @@
     "pb0529fb9": {
         "m22be6817": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -981,7 +981,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1002,7 +1002,7 @@
         },
         "m37886c78": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1014,7 +1014,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1035,7 +1035,7 @@
         },
         "m9fda9b20": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1047,7 +1047,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1068,7 +1068,7 @@
         },
         "mbb8e5b24": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1080,7 +1080,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1101,7 +1101,7 @@
         },
         "mc710c1a4": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1113,7 +1113,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1134,7 +1134,7 @@
         },
         "mf702205f": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1146,7 +1146,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1169,7 +1169,7 @@
     "pc8cbdb24": {
         "m22be6817": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1181,7 +1181,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1202,7 +1202,7 @@
         },
         "m37886c78": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1214,7 +1214,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1235,7 +1235,7 @@
         },
         "mbb8e5b24": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1247,7 +1247,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1268,7 +1268,7 @@
         },
         "mc710c1a4": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1280,7 +1280,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1301,7 +1301,7 @@
         },
         "mf702205f": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1313,7 +1313,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1336,7 +1336,7 @@
     "pd01ac450": {
         "m22be6817": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1348,7 +1348,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1369,7 +1369,7 @@
         },
         "m37886c78": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1381,7 +1381,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1402,7 +1402,7 @@
         },
         "mbb8e5b24": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1414,7 +1414,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1435,7 +1435,7 @@
         },
         "mc710c1a4": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1447,7 +1447,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1468,7 +1468,7 @@
         },
         "mf702205f": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1480,7 +1480,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1503,7 +1503,7 @@
     "pe1ec8fbd": {
         "m22be6817": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1515,7 +1515,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1536,7 +1536,7 @@
         },
         "mbb8e5b24": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1548,7 +1548,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1571,7 +1571,7 @@
     "pe6ec2d4b": {
         "m22be6817": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1583,7 +1583,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1604,7 +1604,7 @@
         },
         "m37886c78": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1616,7 +1616,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1637,7 +1637,7 @@
         },
         "m9fda9b20": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1649,7 +1649,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1670,7 +1670,7 @@
         },
         "mbb8e5b24": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1682,7 +1682,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1703,7 +1703,7 @@
         },
         "mc710c1a4": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1715,7 +1715,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1736,7 +1736,7 @@
         },
         "mf702205f": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1748,7 +1748,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1768,4 +1768,4 @@
             ]
         }
     }
-}
+}
\ No newline at end of file
diff --git a/data/neurons/striatum/dspn/str-dspn-e150917_c10_D1-mWT-P270-20-v20211026/meta.json b/data/neurons/striatum/dspn/str-dspn-e150917_c10_D1-mWT-P270-20-v20211026/meta.json
index 8bcab4fb..d37167aa 100644
--- a/data/neurons/striatum/dspn/str-dspn-e150917_c10_D1-mWT-P270-20-v20211026/meta.json
+++ b/data/neurons/striatum/dspn/str-dspn-e150917_c10_D1-mWT-P270-20-v20211026/meta.json
@@ -2,7 +2,7 @@
     "p065284f1": {
         "m71f9efc2": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -14,7 +14,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -35,7 +35,7 @@
         },
         "m7fe0fbde": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -47,7 +47,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -68,7 +68,7 @@
         },
         "m82894e90": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -80,7 +80,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -101,7 +101,7 @@
         },
         "mad2e6da1": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -113,7 +113,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -134,7 +134,7 @@
         },
         "mc44c4566": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -146,7 +146,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -169,7 +169,7 @@
     "p180cce48": {
         "m82894e90": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -181,7 +181,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -202,7 +202,7 @@
         },
         "mad2e6da1": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -214,7 +214,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -235,7 +235,7 @@
         },
         "mc44c4566": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -247,7 +247,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -270,7 +270,7 @@
     "p4e92e4bc": {
         "m71f9efc2": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -282,7 +282,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -301,75 +301,75 @@
                 "nm00667b40"
             ]
         },
-        "m80fca697": {
+        "m7fe0fbde": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
                     "jitter": 0.0,
                     "modFile": "tmGlut",
-                    "nInputs": 335,
+                    "nInputs": 298,
                     "parameterFile": "$SNUDDA_DATA/synapses/striatum/M1RH_Analysis_190925.h5-parameters-MS.json",
                     "populationUnitCorrelation": 0.0,
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
                     "jitter": 0.0,
                     "modFile": "tmGlut",
-                    "nInputs": 193,
+                    "nInputs": 219,
                     "parameterFile": "$SNUDDA_DATA/synapses/striatum/TH_Analysis_191001.h5-parameters-MS.json",
                     "populationUnitCorrelation": 0.0,
                     "synapseDensity": "0.05*exp(-d/200e-6)",
                     "type": "AMPA_NMDA"
                 }
             },
-            "morphology": "WT-P270-20-15ak-cor-res3-var2.swc",
+            "morphology": "WT-P270-20-15ak-cor-res3-var0.swc",
             "neuromodulation": [
-                "nm8c3e3416",
-                "nm8e272e5a"
+                "nm46c5d286",
+                "nmbb6220f1"
             ]
         },
-        "m7fe0fbde": {
+        "m80fca697": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
                     "jitter": 0.0,
                     "modFile": "tmGlut",
-                    "nInputs": 298,
+                    "nInputs": 335,
                     "parameterFile": "$SNUDDA_DATA/synapses/striatum/M1RH_Analysis_190925.h5-parameters-MS.json",
                     "populationUnitCorrelation": 0.0,
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
                     "jitter": 0.0,
                     "modFile": "tmGlut",
-                    "nInputs": 219,
+                    "nInputs": 193,
                     "parameterFile": "$SNUDDA_DATA/synapses/striatum/TH_Analysis_191001.h5-parameters-MS.json",
                     "populationUnitCorrelation": 0.0,
                     "synapseDensity": "0.05*exp(-d/200e-6)",
                     "type": "AMPA_NMDA"
                 }
             },
-            "morphology": "WT-P270-20-15ak-cor-res3-var0.swc",
+            "morphology": "WT-P270-20-15ak-cor-res3-var2.swc",
             "neuromodulation": [
-                "nm46c5d286",
-                "nmbb6220f1"
+                "nm8c3e3416",
+                "nm8e272e5a"
             ]
         },
         "m82894e90": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -381,7 +381,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -402,7 +402,7 @@
         },
         "m82bef621": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -414,7 +414,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -435,7 +435,7 @@
         },
         "mc44c4566": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -447,7 +447,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -468,75 +468,75 @@
         }
     },
     "p6c462b98": {
-        "m80fca697": {
+        "m7fe0fbde": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
                     "jitter": 0.0,
                     "modFile": "tmGlut",
-                    "nInputs": 358,
+                    "nInputs": 330,
                     "parameterFile": "$SNUDDA_DATA/synapses/striatum/M1RH_Analysis_190925.h5-parameters-MS.json",
                     "populationUnitCorrelation": 0.0,
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
                     "jitter": 0.0,
                     "modFile": "tmGlut",
-                    "nInputs": 226,
+                    "nInputs": 219,
                     "parameterFile": "$SNUDDA_DATA/synapses/striatum/TH_Analysis_191001.h5-parameters-MS.json",
                     "populationUnitCorrelation": 0.0,
                     "synapseDensity": "0.05*exp(-d/200e-6)",
                     "type": "AMPA_NMDA"
                 }
             },
-            "morphology": "WT-P270-20-15ak-cor-res3-var2.swc",
+            "morphology": "WT-P270-20-15ak-cor-res3-var0.swc",
             "neuromodulation": [
-                "nmd735d643",
-                "nm34676ca5"
+                "nm692058e0",
+                "nm8b95cb6e"
             ]
         },
-        "m7fe0fbde": {
+        "m80fca697": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
                     "jitter": 0.0,
                     "modFile": "tmGlut",
-                    "nInputs": 330,
+                    "nInputs": 358,
                     "parameterFile": "$SNUDDA_DATA/synapses/striatum/M1RH_Analysis_190925.h5-parameters-MS.json",
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@@ -1135,7 +1135,7 @@
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@@ -1201,75 +1201,75 @@
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@@ -1434,75 +1434,75 @@
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+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
                     "jitter": 0.0,
                     "modFile": "tmGlut",
-                    "nInputs": 258,
+                    "nInputs": 209,
                     "parameterFile": "$SNUDDA_DATA/synapses/striatum/TH_Analysis_191001.h5-parameters-MS.json",
                     "populationUnitCorrelation": 0.0,
                     "synapseDensity": "0.05*exp(-d/200e-6)",
                     "type": "AMPA_NMDA"
                 }
             },
-            "morphology": "WT-P270-20-15ak-cor-res3-var2.swc",
+            "morphology": "WT-P270-20-15ak-cor-res3-var0.swc",
             "neuromodulation": [
-                "nm007205b1",
-                "nm34676ca5"
+                "nm34676ca5",
+                "nmd735d643"
             ]
         },
-        "m7fe0fbde": {
+        "m80fca697": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
                     "jitter": 0.0,
                     "modFile": "tmGlut",
-                    "nInputs": 389,
+                    "nInputs": 326,
                     "parameterFile": "$SNUDDA_DATA/synapses/striatum/M1RH_Analysis_190925.h5-parameters-MS.json",
                     "populationUnitCorrelation": 0.0,
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
                     "jitter": 0.0,
                     "modFile": "tmGlut",
-                    "nInputs": 209,
+                    "nInputs": 258,
                     "parameterFile": "$SNUDDA_DATA/synapses/striatum/TH_Analysis_191001.h5-parameters-MS.json",
                     "populationUnitCorrelation": 0.0,
                     "synapseDensity": "0.05*exp(-d/200e-6)",
                     "type": "AMPA_NMDA"
                 }
             },
-            "morphology": "WT-P270-20-15ak-cor-res3-var0.swc",
+            "morphology": "WT-P270-20-15ak-cor-res3-var2.swc",
             "neuromodulation": [
-                "nm34676ca5",
-                "nmd735d643"
+                "nm007205b1",
+                "nm34676ca5"
             ]
         },
         "m82894e90": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1514,7 +1514,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1535,7 +1535,7 @@
         },
         "mad2e6da1": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1547,7 +1547,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1567,7 +1567,7 @@
         },
         "mc44c4566": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1579,7 +1579,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1602,7 +1602,7 @@
     "pdcbfd03a": {
         "m71f9efc2": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1614,7 +1614,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1633,75 +1633,75 @@
                 "nm4b9bc75a"
             ]
         },
-        "m80fca697": {
+        "m7fe0fbde": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
                     "jitter": 0.0,
                     "modFile": "tmGlut",
-                    "nInputs": 324,
+                    "nInputs": 274,
                     "parameterFile": "$SNUDDA_DATA/synapses/striatum/M1RH_Analysis_190925.h5-parameters-MS.json",
                     "populationUnitCorrelation": 0.0,
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
                     "jitter": 0.0,
                     "modFile": "tmGlut",
-                    "nInputs": 240,
+                    "nInputs": 165,
                     "parameterFile": "$SNUDDA_DATA/synapses/striatum/TH_Analysis_191001.h5-parameters-MS.json",
                     "populationUnitCorrelation": 0.0,
                     "synapseDensity": "0.05*exp(-d/200e-6)",
                     "type": "AMPA_NMDA"
                 }
             },
-            "morphology": "WT-P270-20-15ak-cor-res3-var2.swc",
+            "morphology": "WT-P270-20-15ak-cor-res3-var0.swc",
             "neuromodulation": [
-                "nma08537f0",
-                "nm3465580f"
+                "nm71364fbb",
+                "nm1d5edd47"
             ]
         },
-        "m7fe0fbde": {
+        "m80fca697": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
                     "jitter": 0.0,
                     "modFile": "tmGlut",
-                    "nInputs": 274,
+                    "nInputs": 324,
                     "parameterFile": "$SNUDDA_DATA/synapses/striatum/M1RH_Analysis_190925.h5-parameters-MS.json",
                     "populationUnitCorrelation": 0.0,
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
                     "jitter": 0.0,
                     "modFile": "tmGlut",
-                    "nInputs": 165,
+                    "nInputs": 240,
                     "parameterFile": "$SNUDDA_DATA/synapses/striatum/TH_Analysis_191001.h5-parameters-MS.json",
                     "populationUnitCorrelation": 0.0,
                     "synapseDensity": "0.05*exp(-d/200e-6)",
                     "type": "AMPA_NMDA"
                 }
             },
-            "morphology": "WT-P270-20-15ak-cor-res3-var0.swc",
+            "morphology": "WT-P270-20-15ak-cor-res3-var2.swc",
             "neuromodulation": [
-                "nm71364fbb",
-                "nm1d5edd47"
+                "nma08537f0",
+                "nm3465580f"
             ]
         },
         "m82894e90": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1713,7 +1713,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1733,7 +1733,7 @@
         },
         "mad2e6da1": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1745,7 +1745,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1766,7 +1766,7 @@
         },
         "mc44c4566": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1778,7 +1778,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1798,4 +1798,4 @@
             ]
         }
     }
-}
+}
\ No newline at end of file
diff --git a/data/neurons/striatum/dspn/str-dspn-e150917_c6_D1-m21-6-DE-v20211028/meta.json b/data/neurons/striatum/dspn/str-dspn-e150917_c6_D1-m21-6-DE-v20211028/meta.json
index fce4ac85..d8ea5290 100644
--- a/data/neurons/striatum/dspn/str-dspn-e150917_c6_D1-m21-6-DE-v20211028/meta.json
+++ b/data/neurons/striatum/dspn/str-dspn-e150917_c6_D1-m21-6-DE-v20211028/meta.json
@@ -2,7 +2,7 @@
     "p185b99a1": {
         "m91d5391a": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -14,7 +14,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -35,7 +35,7 @@
         },
         "m93f282f3": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -47,7 +47,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -68,7 +68,7 @@
         },
         "mdf60297d": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -80,7 +80,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -103,7 +103,7 @@
     "pb267a31a": {
         "m01df38e6": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -115,7 +115,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -136,7 +136,7 @@
         },
         "m7721d5cf": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -148,7 +148,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -169,7 +169,7 @@
         },
         "mf0350288": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -181,7 +181,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -201,4 +201,4 @@
             ]
         }
     }
-}
+}
\ No newline at end of file
diff --git a/data/neurons/striatum/dspn/str-dspn-e150917_c9_D1-mWT-1215MSN03-v20211026/meta.json b/data/neurons/striatum/dspn/str-dspn-e150917_c9_D1-mWT-1215MSN03-v20211026/meta.json
index 0aeddedd..740b5fed 100644
--- a/data/neurons/striatum/dspn/str-dspn-e150917_c9_D1-mWT-1215MSN03-v20211026/meta.json
+++ b/data/neurons/striatum/dspn/str-dspn-e150917_c9_D1-mWT-1215MSN03-v20211026/meta.json
@@ -2,7 +2,7 @@
     "p1dc65e22": {
         "m0687467b": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -14,7 +14,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -35,7 +35,7 @@
         },
         "m157e588e": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -47,7 +47,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -68,7 +68,7 @@
         },
         "m615b0265": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -80,7 +80,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -101,7 +101,7 @@
         },
         "m9dda78ad": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -113,7 +113,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -134,7 +134,7 @@
         },
         "mc257367a": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -146,7 +146,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -167,7 +167,7 @@
         },
         "md859ea62": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -179,7 +179,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -202,7 +202,7 @@
     "p30cfaa2c": {
         "m0687467b": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -214,7 +214,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -235,7 +235,7 @@
         },
         "m17af04cc": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -247,7 +247,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -268,7 +268,7 @@
         },
         "m615b0265": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -280,7 +280,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -301,7 +301,7 @@
         },
         "m9dda78ad": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -313,7 +313,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -334,7 +334,7 @@
         },
         "md859ea62": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -346,7 +346,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -369,7 +369,7 @@
     "p5a27471e": {
         "m0687467b": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -381,7 +381,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -402,7 +402,7 @@
         },
         "m157e588e": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -414,7 +414,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -435,7 +435,7 @@
         },
         "m9dda78ad": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -447,7 +447,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -468,7 +468,7 @@
         },
         "mc257367a": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -480,7 +480,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -503,7 +503,7 @@
     "p68dce107": {
         "m0687467b": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -515,7 +515,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -536,7 +536,7 @@
         },
         "m615b0265": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -548,7 +548,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -569,7 +569,7 @@
         },
         "m9dda78ad": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -581,7 +581,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -602,7 +602,7 @@
         },
         "mc257367a": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -614,7 +614,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -635,7 +635,7 @@
         },
         "md859ea62": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -647,7 +647,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -670,7 +670,7 @@
     "p723b464b": {
         "m615b0265": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -682,7 +682,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -703,7 +703,7 @@
         },
         "mc257367a": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -715,7 +715,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -738,7 +738,7 @@
     "pf1939474": {
         "m019100c8": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -750,7 +750,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -771,7 +771,7 @@
         },
         "m0687467b": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -783,7 +783,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -804,7 +804,7 @@
         },
         "m157e588e": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -816,7 +816,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -837,7 +837,7 @@
         },
         "m17af04cc": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -849,7 +849,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -870,7 +870,7 @@
         },
         "m615b0265": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -882,7 +882,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -903,7 +903,7 @@
         },
         "m99fd6c60": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -915,7 +915,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -936,7 +936,7 @@
         },
         "m9dda78ad": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -948,7 +948,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -969,7 +969,7 @@
         },
         "mc257367a": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -981,7 +981,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1002,7 +1002,7 @@
         },
         "md859ea62": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1014,7 +1014,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1034,4 +1034,4 @@
             ]
         }
     }
-}
+}
\ No newline at end of file
diff --git a/data/neurons/striatum/fs/str-fs-e160628_FS2-mMTC180800A-IDB-v20210210/meta.json b/data/neurons/striatum/fs/str-fs-e160628_FS2-mMTC180800A-IDB-v20210210/meta.json
index a625bf1c..0b2fd36b 100644
--- a/data/neurons/striatum/fs/str-fs-e160628_FS2-mMTC180800A-IDB-v20210210/meta.json
+++ b/data/neurons/striatum/fs/str-fs-e160628_FS2-mMTC180800A-IDB-v20210210/meta.json
@@ -2,7 +2,7 @@
     "p4feff98b": {
         "m4cd420e2": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -14,7 +14,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -36,7 +36,7 @@
         },
         "m4fdebda2": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -48,7 +48,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -70,7 +70,7 @@
         },
         "m86da4874": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -82,7 +82,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -104,7 +104,7 @@
         },
         "m9175e580": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -116,7 +116,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -138,7 +138,7 @@
         },
         "me486b19e": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -150,7 +150,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -174,7 +174,7 @@
     "p59a48310": {
         "m15ae4048": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -186,7 +186,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -206,7 +206,7 @@
         },
         "m4cd420e2": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -218,7 +218,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -238,7 +238,7 @@
         },
         "m4fdebda2": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -250,7 +250,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -270,7 +270,7 @@
         },
         "m86da4874": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -282,7 +282,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -302,7 +302,7 @@
         },
         "m9175e580": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -314,7 +314,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -335,7 +335,7 @@
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         "me486b19e": {
             "input": {
-                "cortical": {
+                "cortical_background": {
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                     "frequency": 1.0,
                     "generator": "poisson",
@@ -347,7 +347,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -370,7 +370,7 @@
     "pa09d12c1": {
         "m127c582f": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -382,7 +382,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
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                     "frequency": 1.0,
                     "generator": "poisson",
@@ -402,7 +402,7 @@
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         "m15ae4048": {
             "input": {
-                "cortical": {
+                "cortical_background": {
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                     "frequency": 1.0,
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@@ -414,7 +414,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
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                     "frequency": 1.0,
                     "generator": "poisson",
@@ -434,7 +434,7 @@
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         "m4cd420e2": {
             "input": {
-                "cortical": {
+                "cortical_background": {
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                     "frequency": 1.0,
                     "generator": "poisson",
@@ -446,7 +446,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -466,7 +466,7 @@
         },
         "m4fdebda2": {
             "input": {
-                "cortical": {
+                "cortical_background": {
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                     "frequency": 1.0,
                     "generator": "poisson",
@@ -478,7 +478,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -498,7 +498,7 @@
         },
         "m86da4874": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -510,7 +510,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
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                     "frequency": 1.0,
                     "generator": "poisson",
@@ -530,7 +530,7 @@
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         "m9175e580": {
             "input": {
-                "cortical": {
+                "cortical_background": {
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                     "frequency": 1.0,
                     "generator": "poisson",
@@ -542,7 +542,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
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                     "frequency": 1.0,
                     "generator": "poisson",
@@ -564,7 +564,7 @@
         },
         "mb1b67bcc": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -576,7 +576,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -596,7 +596,7 @@
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         "me486b19e": {
             "input": {
-                "cortical": {
+                "cortical_background": {
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                     "frequency": 1.0,
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@@ -608,7 +608,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
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                     "frequency": 1.0,
                     "generator": "poisson",
@@ -629,7 +629,7 @@
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         "mfe3d95d2": {
             "input": {
-                "cortical": {
+                "cortical_background": {
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                     "frequency": 1.0,
                     "generator": "poisson",
@@ -641,7 +641,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
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                     "frequency": 1.0,
                     "generator": "poisson",
@@ -663,7 +663,7 @@
     "pb1ef6b01": {
         "m15ae4048": {
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-                "cortical": {
+                "cortical_background": {
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                     "frequency": 1.0,
                     "generator": "poisson",
@@ -675,7 +675,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
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                     "frequency": 1.0,
                     "generator": "poisson",
@@ -698,7 +698,7 @@
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         "m4cd420e2": {
             "input": {
-                "cortical": {
+                "cortical_background": {
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                     "frequency": 1.0,
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@@ -710,7 +710,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
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                     "generator": "poisson",
@@ -733,7 +733,7 @@
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             "input": {
-                "cortical": {
+                "cortical_background": {
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                     "frequency": 1.0,
                     "generator": "poisson",
@@ -745,7 +745,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
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                     "frequency": 1.0,
                     "generator": "poisson",
@@ -768,7 +768,7 @@
         },
         "m86da4874": {
             "input": {
-                "cortical": {
+                "cortical_background": {
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                     "frequency": 1.0,
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@@ -780,7 +780,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
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                     "frequency": 1.0,
                     "generator": "poisson",
@@ -803,7 +803,7 @@
         },
         "m9175e580": {
             "input": {
-                "cortical": {
+                "cortical_background": {
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@@ -815,7 +815,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
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                     "generator": "poisson",
@@ -838,7 +838,7 @@
         },
         "mb1b67bcc": {
             "input": {
-                "cortical": {
+                "cortical_background": {
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                     "frequency": 1.0,
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@@ -850,7 +850,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
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                     "frequency": 1.0,
                     "generator": "poisson",
@@ -873,7 +873,7 @@
         },
         "me486b19e": {
             "input": {
-                "cortical": {
+                "cortical_background": {
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                     "frequency": 1.0,
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@@ -885,7 +885,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
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diff --git a/data/neurons/striatum/fs/str-fs-e161024_FS16-mDR-rat-Mar-13-08-1-536-R-v20210210/meta.json b/data/neurons/striatum/fs/str-fs-e161024_FS16-mDR-rat-Mar-13-08-1-536-R-v20210210/meta.json
index 9342efe4..e74bcfdb 100644
--- a/data/neurons/striatum/fs/str-fs-e161024_FS16-mDR-rat-Mar-13-08-1-536-R-v20210210/meta.json
+++ b/data/neurons/striatum/fs/str-fs-e161024_FS16-mDR-rat-Mar-13-08-1-536-R-v20210210/meta.json
@@ -2,7 +2,7 @@
     "p31916918": {
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@@ -14,7 +14,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
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                     "generator": "poisson",
@@ -34,7 +34,7 @@
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         "m2a6ab0d6": {
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+                "cortical_background": {
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@@ -46,7 +46,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
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@@ -66,7 +66,7 @@
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@@ -78,7 +78,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
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@@ -98,7 +98,7 @@
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@@ -110,7 +110,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
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@@ -130,7 +130,7 @@
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@@ -142,7 +142,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
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@@ -162,7 +162,7 @@
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         "ma88f99b9": {
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@@ -174,7 +174,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
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@@ -194,7 +194,7 @@
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         "macdedfff": {
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@@ -206,7 +206,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
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@@ -226,7 +226,7 @@
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@@ -238,7 +238,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
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@@ -258,7 +258,7 @@
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@@ -270,7 +270,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
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-                "thalamic": {
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@@ -292,7 +292,7 @@
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@@ -304,7 +304,7 @@
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@@ -324,7 +324,7 @@
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@@ -336,7 +336,7 @@
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@@ -356,7 +356,7 @@
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@@ -368,7 +368,7 @@
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@@ -388,7 +388,7 @@
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@@ -400,7 +400,7 @@
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@@ -420,7 +420,7 @@
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@@ -432,7 +432,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
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@@ -452,7 +452,7 @@
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         "ma88f99b9": {
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@@ -464,7 +464,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
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@@ -484,7 +484,7 @@
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@@ -496,7 +496,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
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@@ -516,7 +516,7 @@
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@@ -528,7 +528,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
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@@ -548,7 +548,7 @@
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@@ -560,7 +560,7 @@
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                 },
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@@ -582,7 +582,7 @@
     "pf86c86e4": {
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@@ -594,7 +594,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
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                 },
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@@ -614,7 +614,7 @@
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@@ -626,7 +626,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
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                 },
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@@ -646,7 +646,7 @@
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@@ -658,7 +658,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
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                 },
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@@ -678,7 +678,7 @@
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@@ -690,7 +690,7 @@
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                 },
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@@ -710,7 +710,7 @@
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@@ -722,7 +722,7 @@
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@@ -742,7 +742,7 @@
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@@ -754,7 +754,7 @@
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@@ -774,7 +774,7 @@
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@@ -786,7 +786,7 @@
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@@ -806,7 +806,7 @@
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@@ -818,7 +818,7 @@
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@@ -838,7 +838,7 @@
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@@ -850,7 +850,7 @@
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@@ -872,7 +872,7 @@
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@@ -884,7 +884,7 @@
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@@ -904,7 +904,7 @@
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@@ -916,7 +916,7 @@
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@@ -936,7 +936,7 @@
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@@ -948,7 +948,7 @@
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@@ -968,7 +968,7 @@
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@@ -980,7 +980,7 @@
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@@ -1000,7 +1000,7 @@
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@@ -1012,7 +1012,7 @@
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@@ -1032,7 +1032,7 @@
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@@ -1044,7 +1044,7 @@
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@@ -1064,7 +1064,7 @@
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@@ -1076,7 +1076,7 @@
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                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1096,7 +1096,7 @@
         },
         "mf0a83676": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1108,7 +1108,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
diff --git a/data/neurons/striatum/fs/str-fs-e161205_FS1-mBE104E-v20210209/meta.json b/data/neurons/striatum/fs/str-fs-e161205_FS1-mBE104E-v20210209/meta.json
index 8de24085..47e5dcf2 100644
--- a/data/neurons/striatum/fs/str-fs-e161205_FS1-mBE104E-v20210209/meta.json
+++ b/data/neurons/striatum/fs/str-fs-e161205_FS1-mBE104E-v20210209/meta.json
@@ -2,7 +2,7 @@
     "p2055cb3e": {
         "m1a3fcdc5": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -14,7 +14,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -34,7 +34,7 @@
         },
         "m2353c9ea": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -46,7 +46,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -66,7 +66,7 @@
         },
         "m4839f17c": {
             "input": {
-                "cortical": {
+                "cortical_background": {
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                     "frequency": 1.0,
                     "generator": "poisson",
@@ -78,7 +78,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
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                     "frequency": 1.0,
                     "generator": "poisson",
@@ -98,7 +98,7 @@
         },
         "m7fb43a9c": {
             "input": {
-                "cortical": {
+                "cortical_background": {
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                     "frequency": 1.0,
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@@ -110,7 +110,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -130,7 +130,7 @@
         },
         "m85dd3778": {
             "input": {
-                "cortical": {
+                "cortical_background": {
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@@ -142,7 +142,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
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                     "frequency": 1.0,
                     "generator": "poisson",
@@ -162,7 +162,7 @@
         },
         "mad3c93c4": {
             "input": {
-                "cortical": {
+                "cortical_background": {
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                     "frequency": 1.0,
                     "generator": "poisson",
@@ -174,7 +174,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
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                     "frequency": 1.0,
                     "generator": "poisson",
@@ -194,7 +194,7 @@
         },
         "mc8ef3a88": {
             "input": {
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+                "cortical_background": {
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                     "frequency": 1.0,
                     "generator": "poisson",
@@ -206,7 +206,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
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                     "frequency": 1.0,
                     "generator": "poisson",
@@ -226,7 +226,7 @@
         },
         "md6cbd357": {
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@@ -238,7 +238,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
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                     "generator": "poisson",
@@ -258,7 +258,7 @@
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         "mf4ff6845": {
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@@ -270,7 +270,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
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@@ -292,7 +292,7 @@
     "p3c04b779": {
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@@ -304,7 +304,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
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@@ -325,7 +325,7 @@
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         "m2353c9ea": {
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@@ -337,7 +337,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
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@@ -357,7 +357,7 @@
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         "m4839f17c": {
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@@ -369,7 +369,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
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@@ -391,7 +391,7 @@
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         "m7fb43a9c": {
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@@ -403,7 +403,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
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@@ -425,7 +425,7 @@
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         "m85dd3778": {
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@@ -437,7 +437,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
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                     "generator": "poisson",
@@ -457,7 +457,7 @@
         },
         "mad3c93c4": {
             "input": {
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+                "cortical_background": {
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                     "generator": "poisson",
@@ -469,7 +469,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
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                     "generator": "poisson",
@@ -491,7 +491,7 @@
         },
         "mc8ef3a88": {
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                     "frequency": 1.0,
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@@ -503,7 +503,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
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@@ -523,7 +523,7 @@
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         "md6cbd357": {
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@@ -535,7 +535,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
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@@ -555,7 +555,7 @@
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         "mf4ff6845": {
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@@ -567,7 +567,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
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@@ -589,7 +589,7 @@
     "p563801bd": {
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@@ -601,7 +601,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
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@@ -621,7 +621,7 @@
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         "m2353c9ea": {
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@@ -633,7 +633,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
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@@ -653,7 +653,7 @@
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@@ -665,7 +665,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
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@@ -687,7 +687,7 @@
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         "m7fb43a9c": {
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@@ -699,7 +699,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
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@@ -721,7 +721,7 @@
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         "m85dd3778": {
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@@ -733,7 +733,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
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@@ -753,7 +753,7 @@
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         "mad3c93c4": {
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@@ -765,7 +765,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
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@@ -786,7 +786,7 @@
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@@ -798,7 +798,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
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@@ -818,7 +818,7 @@
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@@ -830,7 +830,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
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@@ -850,7 +850,7 @@
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@@ -862,7 +862,7 @@
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@@ -884,7 +884,7 @@
     "p71c7354b": {
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@@ -896,7 +896,7 @@
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@@ -917,7 +917,7 @@
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@@ -929,7 +929,7 @@
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@@ -949,7 +949,7 @@
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@@ -961,7 +961,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
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@@ -984,7 +984,7 @@
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@@ -996,7 +996,7 @@
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@@ -1019,7 +1019,7 @@
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@@ -1031,7 +1031,7 @@
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@@ -1051,7 +1051,7 @@
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@@ -1063,7 +1063,7 @@
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@@ -1084,7 +1084,7 @@
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@@ -1096,7 +1096,7 @@
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@@ -1116,7 +1116,7 @@
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@@ -1128,7 +1128,7 @@
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@@ -1149,7 +1149,7 @@
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@@ -1161,7 +1161,7 @@
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@@ -1183,7 +1183,7 @@
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@@ -1195,7 +1195,7 @@
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@@ -1216,7 +1216,7 @@
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@@ -1228,7 +1228,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1248,7 +1248,7 @@
         },
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             "input": {
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+                "cortical_background": {
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@@ -1260,7 +1260,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
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                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1282,7 +1282,7 @@
         },
         "m7fb43a9c": {
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+                "cortical_background": {
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@@ -1294,7 +1294,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
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                     "generator": "poisson",
@@ -1316,7 +1316,7 @@
         },
         "m85dd3778": {
             "input": {
-                "cortical": {
+                "cortical_background": {
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@@ -1328,7 +1328,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
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                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1348,7 +1348,7 @@
         },
         "mad3c93c4": {
             "input": {
-                "cortical": {
+                "cortical_background": {
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@@ -1360,7 +1360,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1382,7 +1382,7 @@
         },
         "mc8ef3a88": {
             "input": {
-                "cortical": {
+                "cortical_background": {
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                     "frequency": 1.0,
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@@ -1394,7 +1394,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
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                     "generator": "poisson",
@@ -1414,7 +1414,7 @@
         },
         "md6cbd357": {
             "input": {
-                "cortical": {
+                "cortical_background": {
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@@ -1426,7 +1426,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
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                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1446,7 +1446,7 @@
         },
         "mf4ff6845": {
             "input": {
-                "cortical": {
+                "cortical_background": {
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@@ -1458,7 +1458,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
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diff --git a/data/neurons/striatum/fs/str-fs-e161205_FS1-mMTC180800A-IDB-v20210210/meta.json b/data/neurons/striatum/fs/str-fs-e161205_FS1-mMTC180800A-IDB-v20210210/meta.json
index 7e3be144..42e94cfc 100644
--- a/data/neurons/striatum/fs/str-fs-e161205_FS1-mMTC180800A-IDB-v20210210/meta.json
+++ b/data/neurons/striatum/fs/str-fs-e161205_FS1-mMTC180800A-IDB-v20210210/meta.json
@@ -2,7 +2,7 @@
     "p92705ff4": {
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@@ -14,7 +14,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
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                     "generator": "poisson",
@@ -34,7 +34,7 @@
         },
         "m4cd420e2": {
             "input": {
-                "cortical": {
+                "cortical_background": {
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@@ -46,7 +46,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
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                     "generator": "poisson",
@@ -66,7 +66,7 @@
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-                "cortical": {
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@@ -78,7 +78,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
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@@ -98,7 +98,7 @@
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@@ -110,7 +110,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
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@@ -130,7 +130,7 @@
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@@ -142,7 +142,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
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@@ -162,7 +162,7 @@
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         "me486b19e": {
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@@ -174,7 +174,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
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@@ -196,7 +196,7 @@
     "pc047576c": {
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@@ -208,7 +208,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
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@@ -228,7 +228,7 @@
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@@ -240,7 +240,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
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@@ -260,7 +260,7 @@
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@@ -272,7 +272,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
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@@ -292,7 +292,7 @@
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@@ -304,7 +304,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
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@@ -324,7 +324,7 @@
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@@ -336,7 +336,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
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@@ -356,7 +356,7 @@
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@@ -368,7 +368,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
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                 },
-                "thalamic": {
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@@ -390,7 +390,7 @@
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@@ -402,7 +402,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
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                 },
-                "thalamic": {
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@@ -422,7 +422,7 @@
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         "me486b19e": {
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@@ -434,7 +434,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
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@@ -454,7 +454,7 @@
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         "mfe3d95d2": {
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@@ -466,7 +466,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
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@@ -488,7 +488,7 @@
     "pcd48efc3": {
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@@ -500,7 +500,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
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@@ -520,7 +520,7 @@
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@@ -532,7 +532,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
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@@ -552,7 +552,7 @@
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@@ -564,7 +564,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
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                 },
-                "thalamic": {
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@@ -584,7 +584,7 @@
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@@ -596,7 +596,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
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                 },
-                "thalamic": {
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@@ -616,7 +616,7 @@
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@@ -628,7 +628,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
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                 },
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@@ -648,7 +648,7 @@
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@@ -660,7 +660,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
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                 },
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@@ -680,7 +680,7 @@
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@@ -692,7 +692,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
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@@ -712,7 +712,7 @@
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@@ -724,7 +724,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
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@@ -744,7 +744,7 @@
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@@ -756,7 +756,7 @@
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@@ -778,7 +778,7 @@
     "pd31ea15f": {
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@@ -790,7 +790,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
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@@ -810,7 +810,7 @@
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@@ -822,7 +822,7 @@
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@@ -842,7 +842,7 @@
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@@ -854,7 +854,7 @@
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@@ -874,7 +874,7 @@
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@@ -886,7 +886,7 @@
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@@ -906,7 +906,7 @@
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@@ -918,7 +918,7 @@
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@@ -938,7 +938,7 @@
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@@ -950,7 +950,7 @@
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@@ -970,7 +970,7 @@
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@@ -982,7 +982,7 @@
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@@ -1002,7 +1002,7 @@
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                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1014,7 +1014,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1034,7 +1034,7 @@
         },
         "mfe3d95d2": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1046,7 +1046,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1068,7 +1068,7 @@
     "pd99807f4": {
         "m127c582f": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1080,7 +1080,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1100,7 +1100,7 @@
         },
         "m15ae4048": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1112,7 +1112,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1132,7 +1132,7 @@
         },
         "m4cd420e2": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1144,7 +1144,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1164,7 +1164,7 @@
         },
         "m4fdebda2": {
             "input": {
-                "cortical": {
+                "cortical_background": {
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                     "frequency": 1.0,
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@@ -1176,7 +1176,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1196,7 +1196,7 @@
         },
         "m86da4874": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1208,7 +1208,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1228,7 +1228,7 @@
         },
         "m9175e580": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1240,7 +1240,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1260,7 +1260,7 @@
         },
         "mb1b67bcc": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1272,7 +1272,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1292,7 +1292,7 @@
         },
         "me486b19e": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1304,7 +1304,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1324,7 +1324,7 @@
         },
         "mfe3d95d2": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1336,7 +1336,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
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diff --git a/data/neurons/striatum/ispn/str-ispn-e150908_c4_D2-m51-5-DE-v20211026/meta.json b/data/neurons/striatum/ispn/str-ispn-e150908_c4_D2-m51-5-DE-v20211026/meta.json
index e182638f..1ced14f3 100644
--- a/data/neurons/striatum/ispn/str-ispn-e150908_c4_D2-m51-5-DE-v20211026/meta.json
+++ b/data/neurons/striatum/ispn/str-ispn-e150908_c4_D2-m51-5-DE-v20211026/meta.json
@@ -2,7 +2,7 @@
     "p039c9f4f": {
         "m3a845add": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -14,7 +14,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -35,7 +35,7 @@
         },
         "m6486ed26": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -47,7 +47,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -68,7 +68,7 @@
         },
         "m69613ef9": {
             "input": {
-                "cortical": {
+                "cortical_background": {
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                     "frequency": 1.0,
                     "generator": "poisson",
@@ -80,7 +80,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -101,7 +101,7 @@
         },
         "m7bc82287": {
             "input": {
-                "cortical": {
+                "cortical_background": {
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                     "frequency": 1.0,
                     "generator": "poisson",
@@ -113,7 +113,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -134,7 +134,7 @@
         },
         "mc16840cd": {
             "input": {
-                "cortical": {
+                "cortical_background": {
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                     "frequency": 1.0,
                     "generator": "poisson",
@@ -146,7 +146,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
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                     "generator": "poisson",
@@ -167,7 +167,7 @@
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         "md0f5647c": {
             "input": {
-                "cortical": {
+                "cortical_background": {
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@@ -179,7 +179,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
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                     "generator": "poisson",
@@ -200,7 +200,7 @@
         },
         "mdefb8b16": {
             "input": {
-                "cortical": {
+                "cortical_background": {
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                     "frequency": 1.0,
                     "generator": "poisson",
@@ -212,7 +212,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
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                     "generator": "poisson",
@@ -233,7 +233,7 @@
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         "mf2f3395e": {
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@@ -245,7 +245,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
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@@ -268,7 +268,7 @@
     "p581376d6": {
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@@ -280,7 +280,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
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@@ -301,7 +301,7 @@
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         "m6486ed26": {
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@@ -313,7 +313,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
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@@ -334,7 +334,7 @@
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         "m69613ef9": {
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@@ -346,7 +346,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
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                 },
-                "thalamic": {
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@@ -367,7 +367,7 @@
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@@ -379,7 +379,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
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@@ -400,7 +400,7 @@
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         "mc16840cd": {
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@@ -412,7 +412,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
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@@ -433,7 +433,7 @@
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         "md0f5647c": {
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@@ -445,7 +445,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
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@@ -466,7 +466,7 @@
         },
         "mdefb8b16": {
             "input": {
-                "cortical": {
+                "cortical_background": {
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@@ -478,7 +478,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
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@@ -499,7 +499,7 @@
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         "mf2f3395e": {
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@@ -511,7 +511,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
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@@ -534,7 +534,7 @@
     "p635b801c": {
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@@ -546,7 +546,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
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@@ -567,7 +567,7 @@
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         "m6486ed26": {
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@@ -579,7 +579,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
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@@ -600,7 +600,7 @@
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         "m69613ef9": {
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@@ -612,7 +612,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
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@@ -633,7 +633,7 @@
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         "m7bc82287": {
             "input": {
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@@ -645,7 +645,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
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@@ -666,7 +666,7 @@
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         "mc16840cd": {
             "input": {
-                "cortical": {
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@@ -678,7 +678,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
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@@ -699,7 +699,7 @@
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         "md0f5647c": {
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@@ -711,7 +711,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
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@@ -732,7 +732,7 @@
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@@ -744,7 +744,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
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-                "thalamic": {
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@@ -767,7 +767,7 @@
     "p67dac726": {
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@@ -779,7 +779,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
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@@ -800,7 +800,7 @@
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@@ -812,7 +812,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
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                 },
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@@ -833,7 +833,7 @@
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@@ -845,7 +845,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
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@@ -866,7 +866,7 @@
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@@ -878,7 +878,7 @@
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@@ -899,7 +899,7 @@
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@@ -911,7 +911,7 @@
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@@ -932,7 +932,7 @@
         },
         "md0f5647c": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -944,7 +944,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -965,7 +965,7 @@
         },
         "mf2f3395e": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -977,7 +977,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1000,7 +1000,7 @@
     "pd300f5b9": {
         "m3a845add": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1012,7 +1012,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1033,7 +1033,7 @@
         },
         "m6486ed26": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1045,7 +1045,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1066,7 +1066,7 @@
         },
         "m69613ef9": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1078,7 +1078,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1099,7 +1099,7 @@
         },
         "m7bc82287": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1111,7 +1111,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1132,7 +1132,7 @@
         },
         "mc16840cd": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1144,7 +1144,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1165,7 +1165,7 @@
         },
         "md0f5647c": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1177,7 +1177,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1198,7 +1198,7 @@
         },
         "mf2f3395e": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1210,7 +1210,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1233,7 +1233,7 @@
     "pf721cf77": {
         "m3a845add": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1245,7 +1245,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1266,7 +1266,7 @@
         },
         "m6486ed26": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1278,7 +1278,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1299,7 +1299,7 @@
         },
         "m69613ef9": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1311,7 +1311,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1332,7 +1332,7 @@
         },
         "m7bc82287": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1344,7 +1344,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1365,7 +1365,7 @@
         },
         "mc16840cd": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1377,7 +1377,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1398,7 +1398,7 @@
         },
         "md0f5647c": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1410,7 +1410,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1431,7 +1431,7 @@
         },
         "mf2f3395e": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1443,7 +1443,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1466,7 +1466,7 @@
     "pfb05971b": {
         "m3a845add": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1478,7 +1478,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1499,7 +1499,7 @@
         },
         "m6486ed26": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1511,7 +1511,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1532,7 +1532,7 @@
         },
         "m69613ef9": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1544,7 +1544,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1565,7 +1565,7 @@
         },
         "m7bc82287": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1577,7 +1577,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1598,7 +1598,7 @@
         },
         "mc16840cd": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1610,7 +1610,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1631,7 +1631,7 @@
         },
         "md0f5647c": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1643,7 +1643,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1664,7 +1664,7 @@
         },
         "mdefb8b16": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1676,7 +1676,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1697,7 +1697,7 @@
         },
         "mf2f3395e": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1709,7 +1709,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1729,4 +1729,4 @@
             ]
         }
     }
-}
+}
\ No newline at end of file
diff --git a/data/neurons/striatum/ispn/str-ispn-e150917_c11_D2-mWT-MSN1-v20211026/meta.json b/data/neurons/striatum/ispn/str-ispn-e150917_c11_D2-mWT-MSN1-v20211026/meta.json
index 84e58df6..c78a9490 100644
--- a/data/neurons/striatum/ispn/str-ispn-e150917_c11_D2-mWT-MSN1-v20211026/meta.json
+++ b/data/neurons/striatum/ispn/str-ispn-e150917_c11_D2-mWT-MSN1-v20211026/meta.json
@@ -2,7 +2,7 @@
     "p3ab22763": {
         "m2c007bd0": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -14,7 +14,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -35,7 +35,7 @@
         },
         "m44c31740": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -47,7 +47,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -68,7 +68,7 @@
         },
         "m5a8196bf": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -80,7 +80,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -101,7 +101,7 @@
         },
         "m69acecad": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -113,7 +113,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -134,7 +134,7 @@
         },
         "m7878e1f9": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -146,7 +146,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -167,7 +167,7 @@
         },
         "m9c53b5c8": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -179,7 +179,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -200,7 +200,7 @@
         },
         "mcd6a34f2": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -212,7 +212,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -233,7 +233,7 @@
         },
         "mec72d113": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -245,7 +245,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -268,7 +268,7 @@
     "p4b361749": {
         "m44c31740": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -280,7 +280,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -301,7 +301,7 @@
         },
         "m69acecad": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -313,7 +313,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -334,7 +334,7 @@
         },
         "m9c53b5c8": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -346,7 +346,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -367,7 +367,7 @@
         },
         "mc1774f1f": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -379,7 +379,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -400,7 +400,7 @@
         },
         "mcd6a34f2": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -412,7 +412,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -433,7 +433,7 @@
         },
         "mec72d113": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -445,7 +445,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -468,7 +468,7 @@
     "p4be53a3f": {
         "m2c007bd0": {
             "input": {
-                "cortical": {
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@@ -480,7 +480,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
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@@ -501,7 +501,7 @@
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@@ -513,7 +513,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
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@@ -534,7 +534,7 @@
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@@ -546,7 +546,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
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@@ -567,7 +567,7 @@
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@@ -579,7 +579,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
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@@ -600,7 +600,7 @@
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@@ -612,7 +612,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
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@@ -633,7 +633,7 @@
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@@ -645,7 +645,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
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@@ -666,7 +666,7 @@
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@@ -678,7 +678,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
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@@ -699,7 +699,7 @@
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@@ -711,7 +711,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
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@@ -732,7 +732,7 @@
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@@ -744,7 +744,7 @@
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@@ -767,7 +767,7 @@
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@@ -779,7 +779,7 @@
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@@ -800,7 +800,7 @@
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@@ -812,7 +812,7 @@
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@@ -833,7 +833,7 @@
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@@ -845,7 +845,7 @@
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@@ -866,7 +866,7 @@
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@@ -878,7 +878,7 @@
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@@ -901,7 +901,7 @@
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@@ -913,7 +913,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
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@@ -934,7 +934,7 @@
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@@ -946,7 +946,7 @@
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@@ -967,7 +967,7 @@
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@@ -979,7 +979,7 @@
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@@ -1000,7 +1000,7 @@
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@@ -1012,7 +1012,7 @@
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@@ -1033,7 +1033,7 @@
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@@ -1045,7 +1045,7 @@
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@@ -1066,7 +1066,7 @@
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@@ -1078,7 +1078,7 @@
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@@ -1099,7 +1099,7 @@
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@@ -1111,7 +1111,7 @@
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@@ -1132,7 +1132,7 @@
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@@ -1144,7 +1144,7 @@
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@@ -1165,7 +1165,7 @@
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@@ -1177,7 +1177,7 @@
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@@ -1200,7 +1200,7 @@
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@@ -1212,7 +1212,7 @@
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@@ -1233,7 +1233,7 @@
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@@ -1245,7 +1245,7 @@
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@@ -1266,7 +1266,7 @@
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@@ -1278,7 +1278,7 @@
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@@ -1299,7 +1299,7 @@
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@@ -1311,7 +1311,7 @@
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@@ -1332,7 +1332,7 @@
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@@ -1344,7 +1344,7 @@
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@@ -1365,7 +1365,7 @@
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@@ -1377,7 +1377,7 @@
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@@ -1398,7 +1398,7 @@
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@@ -1410,7 +1410,7 @@
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@@ -1431,7 +1431,7 @@
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@@ -1443,7 +1443,7 @@
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@@ -1466,7 +1466,7 @@
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@@ -1478,7 +1478,7 @@
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@@ -1499,7 +1499,7 @@
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@@ -1511,7 +1511,7 @@
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@@ -1532,7 +1532,7 @@
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@@ -1544,7 +1544,7 @@
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@@ -1565,7 +1565,7 @@
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@@ -1577,7 +1577,7 @@
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@@ -1598,7 +1598,7 @@
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@@ -1610,7 +1610,7 @@
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@@ -1631,7 +1631,7 @@
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@@ -1643,7 +1643,7 @@
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@@ -1664,7 +1664,7 @@
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@@ -1676,7 +1676,7 @@
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@@ -1697,7 +1697,7 @@
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@@ -1709,7 +1709,7 @@
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@@ -1730,7 +1730,7 @@
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@@ -1742,7 +1742,7 @@
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@@ -1765,7 +1765,7 @@
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@@ -1777,7 +1777,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1798,7 +1798,7 @@
         },
         "m69acecad": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1810,7 +1810,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1831,7 +1831,7 @@
         },
         "m7878e1f9": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1843,7 +1843,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1864,7 +1864,7 @@
         },
         "m9c53b5c8": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1876,7 +1876,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1897,7 +1897,7 @@
         },
         "mc1774f1f": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1909,7 +1909,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1930,7 +1930,7 @@
         },
         "mcd6a34f2": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1942,7 +1942,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1963,7 +1963,7 @@
         },
         "mec72d113": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1975,7 +1975,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1995,4 +1995,4 @@
             ]
         }
     }
-}
+}
\ No newline at end of file
diff --git a/data/neurons/striatum/ispn/str-ispn-e151123_c1_D2-mWT-P270-09-v20211026/meta.json b/data/neurons/striatum/ispn/str-ispn-e151123_c1_D2-mWT-P270-09-v20211026/meta.json
index 334cb342..0dc91c59 100644
--- a/data/neurons/striatum/ispn/str-ispn-e151123_c1_D2-mWT-P270-09-v20211026/meta.json
+++ b/data/neurons/striatum/ispn/str-ispn-e151123_c1_D2-mWT-P270-09-v20211026/meta.json
@@ -2,7 +2,7 @@
     "p3e12143b": {
         "m3fe14df8": {
             "input": {
-                "cortical": {
+                "cortical_background": {
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                     "frequency": 1.0,
                     "generator": "poisson",
@@ -14,7 +14,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
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                     "frequency": 1.0,
                     "generator": "poisson",
@@ -35,7 +35,7 @@
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         "m54d1813f": {
             "input": {
-                "cortical": {
+                "cortical_background": {
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                     "frequency": 1.0,
                     "generator": "poisson",
@@ -47,7 +47,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -66,143 +66,143 @@
                 "nm46456410"
             ]
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-        "mf146ca77": {
+        "mae7ae141": {
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                     "jitter": 0.0,
                     "modFile": "tmGlut",
-                    "nInputs": 134,
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                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
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                     "frequency": 1.0,
                     "generator": "poisson",
                     "jitter": 0.0,
                     "modFile": "tmGlut",
-                    "nInputs": 123,
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                     "populationUnitCorrelation": 0.0,
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                     "type": "AMPA_NMDA"
                 }
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-            "morphology": "WT-P270-09-15ak-cor-res3-var0.swc",
+            "morphology": "WT-P270-09-15ak-cor-res3-var7.swc",
             "neuromodulation": [
-                "nm77e02321",
-                "nmde2cb84c"
+                "nmab6f99d4",
+                "nm187752be"
             ]
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+        "meb6b73f0": {
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                     "frequency": 1.0,
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                     "jitter": 0.0,
                     "modFile": "tmGlut",
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                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
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                     "frequency": 1.0,
                     "generator": "poisson",
                     "jitter": 0.0,
                     "modFile": "tmGlut",
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                     "type": "AMPA_NMDA"
                 }
             },
-            "morphology": "WT-P270-09-15ak-cor-res3-var7.swc",
+            "morphology": "WT-P270-09-15ak-cor-res3-var1.swc",
             "neuromodulation": [
-                "nmab6f99d4",
-                "nm187752be"
+                "nmde2cb84c",
+                "nme81ea68e"
             ]
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+        "mf078b8ba": {
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+            "morphology": "WT-P270-09-15ak-cor-res3-var2.swc",
             "neuromodulation": [
-                "nmde2cb84c",
-                "nme81ea68e"
+                "nm35dbb4fc",
+                "nmfc106c8b"
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                 }
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-            "morphology": "WT-P270-09-15ak-cor-res3-var2.swc",
+            "morphology": "WT-P270-09-15ak-cor-res3-var0.swc",
             "neuromodulation": [
-                "nm35dbb4fc",
-                "nmfc106c8b"
+                "nm77e02321",
+                "nmde2cb84c"
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         "m3fe14df8": {
             "input": {
-                "cortical": {
+                "cortical_background": {
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                     "frequency": 1.0,
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@@ -214,7 +214,7 @@
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                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
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                     "frequency": 1.0,
                     "generator": "poisson",
@@ -235,7 +235,7 @@
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         "m54d1813f": {
             "input": {
-                "cortical": {
+                "cortical_background": {
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                     "frequency": 1.0,
                     "generator": "poisson",
@@ -247,7 +247,7 @@
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                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
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                     "frequency": 1.0,
                     "generator": "poisson",
@@ -266,143 +266,143 @@
                 "nmad7f1c64"
             ]
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-        "mf146ca77": {
+        "mae7ae141": {
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                 }
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-            "morphology": "WT-P270-09-15ak-cor-res3-var0.swc",
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             "neuromodulation": [
-                "nmc9ff0f99",
-                "nme81ea68e"
+                "nm9662afe0",
+                "nm413b3d0f"
             ]
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+        "meb6b73f0": {
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-                "nme81ea68e",
-                "nmad7f1c64"
+                "nm187752be",
+                "nm46456410"
             ]
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+            "morphology": "WT-P270-09-15ak-cor-res3-var0.swc",
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+                "nmc9ff0f99",
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@@ -414,7 +414,7 @@
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-                "thalamic": {
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@@ -435,7 +435,7 @@
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@@ -447,7 +447,7 @@
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@@ -468,7 +468,7 @@
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@@ -480,7 +480,7 @@
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-                "thalamic": {
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@@ -501,7 +501,7 @@
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@@ -513,7 +513,7 @@
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-                "thalamic": {
+                "thalamic_background": {
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@@ -536,7 +536,7 @@
     "pa1bf191a": {
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@@ -548,7 +548,7 @@
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                 },
-                "thalamic": {
+                "thalamic_background": {
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@@ -569,7 +569,7 @@
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@@ -581,7 +581,7 @@
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@@ -602,7 +602,7 @@
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@@ -614,7 +614,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
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                     "generator": "poisson",
@@ -635,7 +635,7 @@
         },
         "meb6b73f0": {
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-                "cortical": {
+                "cortical_background": {
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                     "frequency": 1.0,
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@@ -647,7 +647,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
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                     "generator": "poisson",
@@ -670,7 +670,7 @@
     "pa3337f7b": {
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+                "cortical_background": {
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                     "generator": "poisson",
@@ -682,7 +682,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
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                     "generator": "poisson",
@@ -703,110 +703,110 @@
         }
     },
     "pe15ec0f7": {
-        "mf146ca77": {
+        "meb6b73f0": {
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                     "modFile": "tmGlut",
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                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
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                     "frequency": 1.0,
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                     "jitter": 0.0,
                     "modFile": "tmGlut",
-                    "nInputs": 125,
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                     "parameterFile": "$SNUDDA_DATA/synapses/striatum/TH_Analysis_191001.h5-parameters-MS.json",
                     "populationUnitCorrelation": 0.0,
                     "synapseDensity": "0.05*exp(-d/200e-6)",
                     "type": "AMPA_NMDA"
                 }
             },
-            "morphology": "WT-P270-09-15ak-cor-res3-var0.swc",
+            "morphology": "WT-P270-09-15ak-cor-res3-var1.swc",
             "neuromodulation": [
-                "nmc9ff0f99",
-                "nmad7f1c64"
+                "nm413b3d0f",
+                "nm77e02321"
             ]
         },
-        "meb6b73f0": {
+        "mf078b8ba": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
                     "jitter": 0.0,
                     "modFile": "tmGlut",
-                    "nInputs": 145,
+                    "nInputs": 144,
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                     "populationUnitCorrelation": 0.0,
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
                     "jitter": 0.0,
                     "modFile": "tmGlut",
-                    "nInputs": 119,
+                    "nInputs": 123,
                     "parameterFile": "$SNUDDA_DATA/synapses/striatum/TH_Analysis_191001.h5-parameters-MS.json",
                     "populationUnitCorrelation": 0.0,
                     "synapseDensity": "0.05*exp(-d/200e-6)",
                     "type": "AMPA_NMDA"
                 }
             },
-            "morphology": "WT-P270-09-15ak-cor-res3-var1.swc",
+            "morphology": "WT-P270-09-15ak-cor-res3-var2.swc",
             "neuromodulation": [
-                "nm413b3d0f",
-                "nm77e02321"
+                "nmc13e6007",
+                "nm063a2f37"
             ]
         },
-        "mf078b8ba": {
+        "mf146ca77": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
                     "jitter": 0.0,
                     "modFile": "tmGlut",
-                    "nInputs": 144,
+                    "nInputs": 136,
                     "parameterFile": "$SNUDDA_DATA/synapses/striatum/M1RH_Analysis_190925.h5-parameters-MS.json",
                     "populationUnitCorrelation": 0.0,
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
                     "jitter": 0.0,
                     "modFile": "tmGlut",
-                    "nInputs": 123,
+                    "nInputs": 125,
                     "parameterFile": "$SNUDDA_DATA/synapses/striatum/TH_Analysis_191001.h5-parameters-MS.json",
                     "populationUnitCorrelation": 0.0,
                     "synapseDensity": "0.05*exp(-d/200e-6)",
                     "type": "AMPA_NMDA"
                 }
             },
-            "morphology": "WT-P270-09-15ak-cor-res3-var2.swc",
+            "morphology": "WT-P270-09-15ak-cor-res3-var0.swc",
             "neuromodulation": [
-                "nmc13e6007",
-                "nm063a2f37"
+                "nmc9ff0f99",
+                "nmad7f1c64"
             ]
         }
     },
     "pe164bcda": {
         "m3fe14df8": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -818,7 +818,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -839,7 +839,7 @@
         },
         "m54d1813f": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -851,7 +851,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -872,7 +872,7 @@
         },
         "mae7ae141": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -884,7 +884,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -907,7 +907,7 @@
     "ped5570dc": {
         "m54d1813f": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -919,7 +919,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -938,137 +938,137 @@
                 "nmdd1fba7a"
             ]
         },
-        "mf146ca77": {
+        "mae7ae141": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
                     "jitter": 0.0,
                     "modFile": "tmGlut",
-                    "nInputs": 139,
+                    "nInputs": 144,
                     "parameterFile": "$SNUDDA_DATA/synapses/striatum/M1RH_Analysis_190925.h5-parameters-MS.json",
                     "populationUnitCorrelation": 0.0,
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
                     "jitter": 0.0,
                     "modFile": "tmGlut",
-                    "nInputs": 115,
+                    "nInputs": 114,
                     "parameterFile": "$SNUDDA_DATA/synapses/striatum/TH_Analysis_191001.h5-parameters-MS.json",
                     "populationUnitCorrelation": 0.0,
                     "synapseDensity": "0.05*exp(-d/200e-6)",
                     "type": "AMPA_NMDA"
                 }
             },
-            "morphology": "WT-P270-09-15ak-cor-res3-var0.swc",
+            "morphology": "WT-P270-09-15ak-cor-res3-var7.swc",
             "neuromodulation": [
-                "nm187752be",
-                "nm509bb201"
+                "nmfc106c8b",
+                "nme81ea68e"
             ]
         },
-        "mae7ae141": {
+        "meb6b73f0": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
                     "jitter": 0.0,
                     "modFile": "tmGlut",
-                    "nInputs": 144,
+                    "nInputs": 148,
                     "parameterFile": "$SNUDDA_DATA/synapses/striatum/M1RH_Analysis_190925.h5-parameters-MS.json",
                     "populationUnitCorrelation": 0.0,
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
                     "jitter": 0.0,
                     "modFile": "tmGlut",
-                    "nInputs": 114,
+                    "nInputs": 123,
                     "parameterFile": "$SNUDDA_DATA/synapses/striatum/TH_Analysis_191001.h5-parameters-MS.json",
                     "populationUnitCorrelation": 0.0,
                     "synapseDensity": "0.05*exp(-d/200e-6)",
                     "type": "AMPA_NMDA"
                 }
             },
-            "morphology": "WT-P270-09-15ak-cor-res3-var7.swc",
+            "morphology": "WT-P270-09-15ak-cor-res3-var1.swc",
             "neuromodulation": [
                 "nmfc106c8b",
-                "nme81ea68e"
+                "nmab6f99d4"
             ]
         },
-        "meb6b73f0": {
+        "mf078b8ba": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
                     "jitter": 0.0,
                     "modFile": "tmGlut",
-                    "nInputs": 148,
+                    "nInputs": 145,
                     "parameterFile": "$SNUDDA_DATA/synapses/striatum/M1RH_Analysis_190925.h5-parameters-MS.json",
                     "populationUnitCorrelation": 0.0,
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
                     "jitter": 0.0,
                     "modFile": "tmGlut",
-                    "nInputs": 123,
+                    "nInputs": 119,
                     "parameterFile": "$SNUDDA_DATA/synapses/striatum/TH_Analysis_191001.h5-parameters-MS.json",
                     "populationUnitCorrelation": 0.0,
                     "synapseDensity": "0.05*exp(-d/200e-6)",
                     "type": "AMPA_NMDA"
                 }
             },
-            "morphology": "WT-P270-09-15ak-cor-res3-var1.swc",
+            "morphology": "WT-P270-09-15ak-cor-res3-var2.swc",
             "neuromodulation": [
-                "nmfc106c8b",
-                "nmab6f99d4"
+                "nm1b4e179a",
+                "nm187752be"
             ]
         },
-        "mf078b8ba": {
+        "mf146ca77": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
                     "jitter": 0.0,
                     "modFile": "tmGlut",
-                    "nInputs": 145,
+                    "nInputs": 139,
                     "parameterFile": "$SNUDDA_DATA/synapses/striatum/M1RH_Analysis_190925.h5-parameters-MS.json",
                     "populationUnitCorrelation": 0.0,
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
                     "jitter": 0.0,
                     "modFile": "tmGlut",
-                    "nInputs": 119,
+                    "nInputs": 115,
                     "parameterFile": "$SNUDDA_DATA/synapses/striatum/TH_Analysis_191001.h5-parameters-MS.json",
                     "populationUnitCorrelation": 0.0,
                     "synapseDensity": "0.05*exp(-d/200e-6)",
                     "type": "AMPA_NMDA"
                 }
             },
-            "morphology": "WT-P270-09-15ak-cor-res3-var2.swc",
+            "morphology": "WT-P270-09-15ak-cor-res3-var0.swc",
             "neuromodulation": [
-                "nm1b4e179a",
-                "nm187752be"
+                "nm187752be",
+                "nm509bb201"
             ]
         }
     }
-}
+}
\ No newline at end of file
diff --git a/data/neurons/striatum/ispn/str-ispn-e160118_c10_D2-m46-3-DE-v20211026/meta.json b/data/neurons/striatum/ispn/str-ispn-e160118_c10_D2-m46-3-DE-v20211026/meta.json
index 3023a76f..fcc41a2d 100644
--- a/data/neurons/striatum/ispn/str-ispn-e160118_c10_D2-m46-3-DE-v20211026/meta.json
+++ b/data/neurons/striatum/ispn/str-ispn-e160118_c10_D2-m46-3-DE-v20211026/meta.json
@@ -2,7 +2,7 @@
     "p3154bd2c": {
         "m0d1bf3ff": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -14,7 +14,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -35,7 +35,7 @@
         },
         "m0f5fbaeb": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -47,7 +47,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -68,7 +68,7 @@
         },
         "m1083058d": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -80,7 +80,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -101,7 +101,7 @@
         },
         "m541041a7": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -113,7 +113,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -134,7 +134,7 @@
         },
         "mccd6b0f8": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -146,7 +146,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -169,7 +169,7 @@
     "p3b6e817d": {
         "m0f5fbaeb": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -181,7 +181,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -202,7 +202,7 @@
         },
         "m1083058d": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -214,7 +214,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -234,7 +234,7 @@
         },
         "m541041a7": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -246,7 +246,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -267,7 +267,7 @@
         },
         "mccd6b0f8": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -279,7 +279,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -302,7 +302,7 @@
     "p3ba95513": {
         "m1083058d": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -314,7 +314,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -335,7 +335,7 @@
         },
         "m541041a7": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -347,7 +347,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -368,7 +368,7 @@
         },
         "mccd6b0f8": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -380,7 +380,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
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                     "frequency": 1.0,
                     "generator": "poisson",
@@ -403,7 +403,7 @@
     "p55446481": {
         "m0d1bf3ff": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -415,7 +415,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -436,7 +436,7 @@
         },
         "m0f5fbaeb": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -448,7 +448,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -469,7 +469,7 @@
         },
         "m1083058d": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -481,7 +481,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -502,7 +502,7 @@
         },
         "m541041a7": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -514,7 +514,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -535,7 +535,7 @@
         },
         "mccd6b0f8": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -547,7 +547,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -570,7 +570,7 @@
     "p57956f10": {
         "m0f5fbaeb": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -582,7 +582,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -603,7 +603,7 @@
         },
         "m1083058d": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -615,7 +615,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -636,7 +636,7 @@
         },
         "m37a29ec1": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -648,7 +648,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -669,7 +669,7 @@
         },
         "m541041a7": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -681,7 +681,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -701,7 +701,7 @@
         },
         "mccd6b0f8": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -713,7 +713,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -736,7 +736,7 @@
     "p771c1c3b": {
         "m0f5fbaeb": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -748,7 +748,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -768,7 +768,7 @@
         },
         "m1083058d": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -780,7 +780,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -800,7 +800,7 @@
         },
         "m541041a7": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -812,7 +812,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -833,7 +833,7 @@
         },
         "mccd6b0f8": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -845,7 +845,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -868,7 +868,7 @@
     "p8bb158ba": {
         "m0f5fbaeb": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -880,7 +880,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -901,7 +901,7 @@
         },
         "m1083058d": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -913,7 +913,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -934,7 +934,7 @@
         },
         "m541041a7": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -946,7 +946,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -966,7 +966,7 @@
         },
         "mccd6b0f8": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -978,7 +978,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1001,7 +1001,7 @@
     "pad0f1c3e": {
         "m0d1bf3ff": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1013,7 +1013,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1034,7 +1034,7 @@
         },
         "m0f5fbaeb": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1046,7 +1046,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1066,7 +1066,7 @@
         },
         "m1083058d": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1078,7 +1078,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1099,7 +1099,7 @@
         },
         "m541041a7": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1111,7 +1111,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1132,7 +1132,7 @@
         },
         "mccd6b0f8": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1144,7 +1144,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1167,7 +1167,7 @@
     "pf0e1c1d6": {
         "m1083058d": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1179,7 +1179,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1200,7 +1200,7 @@
         },
         "m541041a7": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1212,7 +1212,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1233,7 +1233,7 @@
         },
         "mccd6b0f8": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1245,7 +1245,7 @@
                     "synapseDensity": "1.15*0.05/(1+exp(-(d-30e-6)/5e-6))",
                     "type": "AMPA_NMDA"
                 },
-                "thalamic": {
+                "thalamic_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -1265,4 +1265,4 @@
             ]
         }
     }
-}
+}
\ No newline at end of file
diff --git a/data/neurons/striatum/lts/LTS_180118_morp_9862_updated_20210301/meta.json b/data/neurons/striatum/lts/LTS_180118_morp_9862_updated_20210301/meta.json
index e40b16bb..7115ac82 100644
--- a/data/neurons/striatum/lts/LTS_180118_morp_9862_updated_20210301/meta.json
+++ b/data/neurons/striatum/lts/LTS_180118_morp_9862_updated_20210301/meta.json
@@ -2,7 +2,7 @@
     "p119533eb": {
         "m803558b5": {
             "input": {
-                "cortical": {
+                "cortical_background": {
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                     "frequency": 1.0,
                     "generator": "poisson",
@@ -30,7 +30,7 @@
     "p1886c37b": {
         "m803558b5": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -57,7 +57,7 @@
     "p1fd33c8c": {
         "m803558b5": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -84,7 +84,7 @@
     "p7f931884": {
         "m803558b5": {
             "input": {
-                "cortical": {
+                "cortical_background": {
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                     "frequency": 1.0,
                     "generator": "poisson",
@@ -111,7 +111,7 @@
     "p8c493214": {
         "m803558b5": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -138,7 +138,7 @@
     "p94d54b1c": {
         "m803558b5": {
             "input": {
-                "cortical": {
+                "cortical_background": {
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                     "frequency": 1.0,
                     "generator": "poisson",
@@ -167,7 +167,7 @@
     "padd48e2a": {
         "m803558b5": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -195,7 +195,7 @@
     "pb66357bd": {
         "m803558b5": {
             "input": {
-                "cortical": {
+                "cortical_background": {
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                     "frequency": 1.0,
                     "generator": "poisson",
@@ -224,7 +224,7 @@
     "pdb801960": {
         "m803558b5": {
             "input": {
-                "cortical": {
+                "cortical_background": {
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                     "frequency": 1.0,
                     "generator": "poisson",
@@ -251,7 +251,7 @@
     "pe9c8b984": {
         "m803558b5": {
             "input": {
-                "cortical": {
+                "cortical_background": {
                     "conductance": 5e-10,
                     "frequency": 1.0,
                     "generator": "poisson",
@@ -277,4 +277,4 @@
             ]
         }
     }
-}
+}
\ No newline at end of file
diff --git a/data/neurons/striatum/lts/LTS_180118_morp_9862_updated_April2022/meta.json b/data/neurons/striatum/lts/LTS_180118_morp_9862_updated_April2022/meta.json
index e8ef936e..13977f7e 100644
--- a/data/neurons/striatum/lts/LTS_180118_morp_9862_updated_April2022/meta.json
+++ b/data/neurons/striatum/lts/LTS_180118_morp_9862_updated_April2022/meta.json
@@ -2,7 +2,7 @@
     "p047a6bb7": {
         "mda52699c": {
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-                "cortical": {
+                "cortical_background": {
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                     "frequency": 1.0,
                     "generator": "poisson",
@@ -28,7 +28,7 @@
     "p08df4357": {
         "m872fbb26": {
             "input": {
-                "cortical": {
+                "cortical_background": {
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                     "frequency": 1.0,
                     "generator": "poisson",
@@ -54,7 +54,7 @@
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         "mf4ba6a4e": {
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-                "cortical": {
+                "cortical_background": {
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                     "frequency": 1.0,
                     "generator": "poisson",
@@ -80,7 +80,7 @@
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             "input": {
-                "cortical": {
+                "cortical_background": {
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                     "frequency": 1.0,
                     "generator": "poisson",
@@ -106,7 +106,7 @@
     "p1a0c46fe": {
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-                "cortical": {
+                "cortical_background": {
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                     "frequency": 1.0,
                     "generator": "poisson",
@@ -132,7 +132,7 @@
     "p1cd5defe": {
         "m8ded5e00": {
             "input": {
-                "cortical": {
+                "cortical_background": {
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                     "frequency": 1.0,
                     "generator": "poisson",
@@ -158,7 +158,7 @@
     "p238d51d1": {
         "mda52699c": {
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-                "cortical": {
+                "cortical_background": {
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                     "frequency": 1.0,
                     "generator": "poisson",
@@ -184,7 +184,7 @@
     "p266c7fb8": {
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-                "cortical": {
+                "cortical_background": {
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                     "frequency": 1.0,
                     "generator": "poisson",
@@ -210,7 +210,7 @@
     "p272f9557": {
         "mda52699c": {
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-                "cortical": {
+                "cortical_background": {
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                     "frequency": 1.0,
                     "generator": "poisson",
@@ -236,7 +236,7 @@
     "p290dc260": {
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-                "cortical": {
+                "cortical_background": {
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@@ -262,7 +262,7 @@
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+                "cortical_background": {
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                     "generator": "poisson",
@@ -288,7 +288,7 @@
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-                "cortical": {
+                "cortical_background": {
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@@ -314,7 +314,7 @@
     "p3011abd8": {
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-                "cortical": {
+                "cortical_background": {
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                     "frequency": 1.0,
                     "generator": "poisson",
@@ -340,7 +340,7 @@
     "p3762fe01": {
         "ma4dacccf": {
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+                "cortical_background": {
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                     "generator": "poisson",
@@ -366,7 +366,7 @@
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-                "cortical": {
+                "cortical_background": {
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                     "frequency": 1.0,
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@@ -392,7 +392,7 @@
     "p3900bef0": {
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-                "cortical": {
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