The Clean Rawdata plug-in (version 2.0) interface has been redesigned and will soon become the default EEGLAB method for removing artifacts from EEG and related data. The plug-in detects and can separate low-frequency drifts, flatline and noisy channels from the data. It can also apply ASR (automated subspace removal) to detect and reject or remove high-amplitude non-brain ('artifact') activity (produced by eye blinks, muscle activity, sensor motion, etc.) by comparing its structure to that of known artifact-free reference data, thereby revealing and recovering (possibly smaller) EEG background activity that lies outside the subspace spanned by the artifact processes.
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