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exp_FearAmy_IC.m
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exp_FearAmy_IC.m
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function [p]=exp_FearAmy_IC(subject,phase,csp,PainThreshold)
%[p]=FearGen_eyelab(subject,phase,csp,PainThreshold)
%
%Used for fearamy project, based on the FearGen_eyelab code. It increments
%it by adding scanner pulse communications.
%
%
EyelinkWanted = 0;
debug = 1;%debug mode
%replace parallel port function with a dummy function
if ismac
outp = @(x,y) fprintf('[%i %i]\n',x,y);
end
if nargin ~= 4
fprintf('Wrong number of inputs\n');
keyboard;
end
csn = mod( csp + 8/2-1, 8)+1;
commandwindow;
%clear everything
clear mex global functions
if ~ismac
cgshut;
global cogent;
end
%%%%%%%%%%%load the GETSECS mex files so call them at least once
GetSecs;
WaitSecs(0.001);
%
el = [];
p = [];
SetParams;
SetPTB;
%
%init all the variables
t = [];
nTrial = 0;
%%
%Time Storage
TimeEndStim = [];
TimeStartShock = [];
TimeTrackerOff = [];
TimeCrossOn = [];
p.var.event_count = 0;
%%
InitEyeLink;
WaitSecs(2);
KbQueueStop(p.ptb.device);
KbQueueRelease(p.ptb.device);
%save again the parameter file
save(p.path.path_param,'p');
if phase == 0
%
p.mrt.dummy_scan = 0;%for the training we don't want any pulses
p.var.ExpPhase = phase;
%UCS check
ShowInstruction(4,1);
ConfirmIntensity;
%test
ShowInstruction(1,1);
ShowInstruction(2,1);
PresentStimuli;
elseif phase == 1
%
if EyelinkWanted
CalibrateEL;
end
p.var.ExpPhase = phase;%set this after the calibration;
%%
for ninst = [3 301:306]
ShowInstruction(ninst,1);
end
PresentStimuli;
WaitSecs(2.5);
AskStimRating;%make sure that scanner doesnt stop prematurely asa the stim offset
% if EyelinkWanted
% CalibrateEL;
% end
% AskDetection;
% AskDetectionSelectable;
end
%get the eyelink file back to this computer
StopEyelink(p.path.edf);
%trim the log file and save
p.out.log = p.out.log(sum(isnan(p.out.log),2) ~= size(p.out.log,2),:);
%shift the time so that the first timestamp is equal to zero
p.out.log(:,1) = p.out.log(:,1) - p.out.log(1);
p.out.log = p.out.log;%copy it to the output variable.
save(p.path.path_param,'p');
%
%move the file to its final location.
movefile(p.path.subject,p.path.finalsubject);
%close everything down
% try
% addpath('/USER/onat/Code/globalfunctions/ssh2_v2_m1_r6/ssh2_v2_m1_r6/')
% p.path.tarname = [p.path.finalsubject(1:end-1) '.tar'];
% tar(p.path.tarname,p.path.finalsubject);
% [a b c] = fileparts( p.path.tarname);
% cd(a)
% scp_simple_put('sanportal','onat','',[b c]);
% fprintf('Copying to neuronass succesfull...\n');
% catch
% fprintf('Copying to neuronass failed...\n');
% end
cleanup;
function AskDetectionSelectable
%asks subjects to select the face that was associated with a shocks
positions = circshift(1:8,[1 PsychRandSample(1:8,[1 1])]);%position of the marker
p.var.ExpPhase = 4;
ShowInstruction(8,1);
%%
increment([p.keys.increase p.keys.decrease]) = [1 -1];%key to increment mapping
%%
ok = 1;
while ok
DrawCircle;
Screen('FrameOval', p.ptb.w, [1 1 0], p.stim.circle_rect(positions(1),:), 2);%draw the marker circle somewhere random initially.
Screen('Flip',p.ptb.w);
[~, keyCode, ~] = KbStrokeWait(p.ptb.device);%observe key presses
keyCode = find(keyCode);
if length(keyCode) == 1%this loop avoids crashes to accidential presses of meta keys
if (keyCode == p.keys.increase) || (keyCode == p.keys.decrease)
positions = circshift(positions,[0 increment(keyCode)]);
elseif keyCode == p.keys.confirm
WaitSecs(0.1);
ok = 0;
end
end
end
%%
Screen('FillRect', p.ptb.w , p.stim.bg, p.ptb.imrect );
Screen('Flip',p.ptb.w);
ShowInstruction(14,0,10);
p.out.selectedface = p.stim.circle_order(positions(1));
end
function DrawCircle
for npos = 1:p.stim.tFace
Screen('DrawTexture', p.ptb.w, p.ptb.stim_sprites_cut(p.stim.circle_file_id(npos)),[],p.stim.circle_rect(npos,:));
%Screen('DrawText', p.ptb.w, sprintf('%i_%i_%i',p.stim.circle_order(npos),p.stim.circle_file_id(npos),npos),mean(p.stim.circle_rect(npos,[1 3])) ,mean(p.stim.circle_rect(npos,[2 4])));
end
end
function [myrect]=angle2rect(A)
factor = 1.9;%factor resize the images
[x y] = pol2cart(A./180*pi,280);%randomly shift the circle
left = x+p.ptb.midpoint(1)-p.stim.width/2/factor;
top = y+p.ptb.midpoint(2)-p.stim.height/2/factor;
right = left+p.stim.width/factor;
bottom = top+p.stim.height/factor;
myrect = [left top right bottom];
end
function AskDetection
%
p.var.ExpPhase = 3;
ShowInstruction(801,1);
%% show a fixation cross
fix = [p.ptb.CrossPosition_x p.ptb.CrossPosition_y(1)];%show the fixation cross at the lip position to ease the subsequent drift correction.
FixCross = [fix(1)-1,fix(2)-p.ptb.fc_size,fix(1)+1,fix(2)+p.ptb.fc_size;fix(1)-p.ptb.fc_size,fix(2)-1,fix(1)+p.ptb.fc_size,fix(2)+1];
Screen('FillRect', p.ptb.w , p.stim.bg, p.ptb.imrect ); %always create a gray background
Screen('FillRect', p.ptb.w, [255,255,255], FixCross');%draw the prestimus cross atop
Screen('DrawingFinished',p.ptb.w,0);
Screen('Flip',p.ptb.w);
StartEyelinkRecording(1,0,p.var.ExpPhase,0,0,0,fix,0);
WaitSecs(1.5);
%%
DrawCircle;
%Stimulus onset
Screen('Flip',p.ptb.w);
if EyelinkWanted
Eyelink('Message', 'Stim Onset');
Eyelink('Message', 'SYNCTIME');
end
%%
WaitSecs(30);
Screen('Flip',p.ptb.w);
if EyelinkWanted
Eyelink('Message', 'Stim Offset');
Eyelink('Message', 'BLANK_SCREEN');
StopEyelinkRecording;
end
end
function ConfirmIntensity
%Compute the intensity we want to deliver to the subject.
p.var.ShockIntensity = p.out.PainThreshold*p.out.ShockFactor;
%
ShowInstruction(9,1);
%
fprintf([repmat('=',1,50) '\n']);
fprintf('TEST SHOCK:\n');
fprintf('!!! ADJUST THE SHOCK INTENSITY ON THE DIGITIMER !!!\n');
fprintf(' The intensity is now: %g mA\n',p.var.ShockIntensity);
fprintf(' Experimenter: Press any key to deliver a shock.\n');
fprintf([repmat('=',1,50) '\n']);
%
[secs, keyCode, deltaSecs] = KbStrokeWait(p.ptb.device);
ShowInstruction(10,0,1+rand(1));%shock is coming message...
t = GetSecs + p.duration.shock;
while GetSecs < t;
Buzz;
end
message = 'Bewege den "Zeiger" mit der rechten und linken Pfeiltaste\n und bestätige deine Einschätzung mit der oberen Pfeiltaste.';
rect = [p.ptb.width*0.2 p.ptb.midpoint(2) p.ptb.width*0.6 100];
response = RatingSlider(rect,2,1,p.keys.increase,p.keys.decrease,p.keys.confirm,{ 'nicht\erträglich' 'erträglich'},message,0);
if response == 2
fprintf('All is fine :)\n');
fprintf('Subject confirmed the shock intensity inside the scanner...\n');
fprintf('INTENSITY TO BE USED FOR THE MAIN EXPERIMENT: %g mA\n',p.var.ShockIntensity);
p.out.ShockIntensity = p.var.ShockIntensity;
return;
elseif response == 1
fprintf('Shit... :(, %g is too much for the subject\n',p.var.ShockIntensity);
fprintf('We will try a little milder intensity.\n');
p.out.ShockFactor = p.out.ShockFactor - 0.05;
ConfirmIntensity;
end
end
function PresentStimuli
%Enter the presentation loop and wait for the first pulse to
%arrive.
%wait for the dummy scans
[secs] = WaitPulse(p.keys.pulse,p.mrt.dummy_scan);%will log it
KbQueueStop(p.ptb.device);
WaitSecs(.05);
KbQueueCreate(p.ptb.device);
KbQueueStart(p.ptb.device);%this means that from now on we are going to log pulses.
%If the scanner by mistake had been started prior to this point
%those pulses would have been not logged.
%log the pulse timings.
mblock_jumps = logical([1 diff(p.presentation.mblock)]);
TimeEndStim = secs(end)- p.ptb.slack;%take the first valid pulse as the end of the last stimulus.
for nTrial = 1:p.presentation.tTrial;
%Get the variables that Trial function needs.
stim_id = p.presentation.stim_id(nTrial);
fix_y = p.presentation.CrossPosition(nTrial);
ISI = p.presentation.isi(nTrial);
ucs = p.presentation.ucs(nTrial);
oddball = p.presentation.oddball(nTrial);
prestimdur = p.duration.prestim+rand(1)*.25;
dist = p.presentation.dist(nTrial);
mblock_jump = mblock_jumps(nTrial);
block_id = p.presentation.mblock(nTrial);
%prestimdur = p_presentation_prestim_dur(nTrial);
%
OnsetTime = TimeEndStim + ISI-p.duration.stim - p.ptb.slack;
fprintf('%d of %d, S: %d, ISI: %d, UCS: %d, ODD: %d, OnsetTime: %05.8gs, ',nTrial,p.presentation.tTrial,stim_id,ISI,ucs,oddball, OnsetTime);
%Start with the trial, here is time-wise sensitive must be
%optimal
[TimeEndStim] = Trial(nTrial,OnsetTime, prestimdur, stim_id , ucs , fix_y, oddball,dist,mblock_jump,block_id);
%(nTrial,TimeStimOnset , prestimdur, stim_id , ucs , fix_i, oddball, dist )
fprintf('OffsetTime: %05.8gs, Difference of %05.8gs\n',TimeEndStim,TimeEndStim-OnsetTime-p.duration.stim);
%
%dump it
[keycode, secs] = KbQueueDump;%this contains both the pulses and keypresses.
%log everything but "pulse keys" as pulses, not as keypresses.
pulses = (keycode == p.keys.pulse);
if any(~pulses);%log keys presses if only there is one
Log(secs(~pulses),7,keycode(~pulses));
end
if any(pulses);%log pulses if only there is one
Log(secs(pulses),0,keycode(pulses));
end
%now we have to detect if the subject has pressed the CONFIRM
%key while the ODDBALL stimulus was on the screen.
if any((keycode == p.keys.confirm) & (secs > OnsetTime) & (secs <= TimeEndStim))
p.out.response(nTrial) = 1;
fprintf('Subject Pressed the Hit Key!!\n');
end
end
%wait 6 seconds for the BOLD signal to come back to the baseline...
KbQueueStop(p.ptb.device);
KbQueueRelease(p.ptb.device);
if p.var.ExpPhase > 0
WaitPulse(p.keys.pulse,p.mrt.dummy_scan);%
fprintf('OK!! Stop the Scanner\n');
end
%dump the final events
[keycode, secs] = KbQueueDump;%this contains both the pulses and keypresses.
%log everything but "pulse keys" as pulses, not as keypresses.
pulses = (keycode == p.keys.pulse);
if any(~pulses);%log keys presses if only there is one
Log(secs(~pulses),7,keycode(~pulses));
end
if any(pulses);%log pulses if only there is one
Log(secs(pulses),0,keycode(pulses));
end
%stop the queue
KbQueueStop(p.ptb.device);
KbQueueRelease(p.ptb.device);
WaitSecs(10);
end
function [TimeEndStim]=Trial(nTrial,TimeStimOnset , prestimdur, stim_id , ucs , fix_i, oddball, dist,microblock_jump,mblock_id)
%get all the times
TimeCrossOnset = TimeStimOnset - prestimdur;
TimeCrossJump = TimeStimOnset + p.duration.stim/2;
TimeEndStim = TimeStimOnset + p.duration.stim- p.ptb.slack;
TimeStartShock = TimeStimOnset + p.duration.onset2shock;
TimeTrackerOff = TimeStimOnset + p.duration.keep_recording;
%% Fixation Onset
fix = [p.ptb.CrossPosition_x p.ptb.CrossPosition_y(fix_i)];
FixCross = [fix(1)-1,fix(2)-p.ptb.fc_size,fix(1)+1,fix(2)+p.ptb.fc_size;fix(1)-p.ptb.fc_size,fix(2)-1,fix(1)+p.ptb.fc_size,fix(2)+1];
Screen('FillRect', p.ptb.w , p.stim.bg, p.ptb.imrect ); %always create a gray background
Screen('FillRect', p.ptb.w, [255,255,255], FixCross');%draw the prestimus cross atop
Screen('DrawingFinished',p.ptb.w,0);
TimeCrossOn = Screen('Flip',p.ptb.w,TimeCrossOnset,0);
Log(TimeCrossOn,1,fix_i);%cross onset.
%turn the eye tracker on
StartEyelinkRecording(nTrial,stim_id,p.var.ExpPhase,dist,oddball,ucs,fix,mblock_id);%I would be cautious here, the first trial is never recorded in the EDF file, reason yet unknown.
%% Draw the stimulus to the buffer
if ~stim_id==0
Screen('DrawTexture', p.ptb.w, p.ptb.stim_sprites(stim_id));
end
%draw also the fixation cross
Screen('FillRect', p.ptb.w, [255,255,255], FixCross');
Screen('DrawingFinished',p.ptb.w,0);
%% STIMULUS ONSET
TimeStimOnset = Screen('Flip',p.ptb.w,TimeStimOnset,0);%asap and dont clear
%send eyelink and ced a marker asap
if EyelinkWanted
Eyelink('Message', 'Stim Onset');
Eyelink('Message', 'SYNCTIME');
end
MarkCED( p.com.lpt.address, p.com.lpt.StimOnset );%this actually didn't really work nicely.
%the first stim onset pulse is always missing. This could be due to
%the fact that the state of the port was already 1 and thus CED
%didn't realize this command.
if oddball
MarkCED( p.com.lpt.address, p.com.lpt.oddball );
end
if ucs
MarkCED(p.com.lpt.address, p.com.lpt.ucs);
end
if microblock_jump
MarkCED( p.com.lpt.address, p.com.lpt.mBlock );
Log(TimeStimOnset,9,mblock_id)
end
Log(TimeStimOnset,3,dist);%log the stimulus onset
%% CROSS JUMPS (same as before but with a different fix position)
if ~stim_id==0
Screen('DrawTexture', p.ptb.w, p.ptb.stim_sprites(stim_id));
end
fix = [p.ptb.CrossPosition_x p.ptb.CrossPosition_y(setdiff(1:2,fix_i))];%take the other position
%draw also the fixation cross
FixCross = [fix(1)-1,fix(2)-p.ptb.fc_size,fix(1)+1,fix(2)+p.ptb.fc_size;fix(1)-p.ptb.fc_size,fix(2)-1,fix(1)+p.ptb.fc_size,fix(2)+1];
Screen('FillRect', p.ptb.w, [255,255,255], FixCross');
Screen('DrawingFinished',p.ptb.w,0);
TimeCrossJump = Screen('Flip',p.ptb.w,TimeCrossJump,0);%asap and dont clear
Log(TimeCrossJump,4,0);%log the stimulus onset
%%
if ucs == 1
%%%%%%%%%%%%%%%%%%%%%%%
%Deliver shock and stim off immediately
TimeStartShock = WaitSecs('UntilTime',TimeStartShock);
if EyelinkWanted
Eyelink('Message', 'UCS Onset');
end
while GetSecs < TimeEndStim;
Buzz;%this is anyway sent to CED.
end
end
%% STIM OFF immediately
TimeEndStim = Screen('Flip',p.ptb.w,TimeEndStim,0);
%send eyelink and ced a marker
Log(TimeEndStim,6,stim_id);%log the stimulus offset
%
%% record some more eye data after stimulus offset.
WaitSecs('UntilTime',TimeTrackerOff);
if EyelinkWanted
Eyelink('Message', 'Stim Offset');
Eyelink('Message', 'BLANK_SCREEN');
end
TimeTrackerOff = StopEyelinkRecording;
if oddball == 1
fprintf('This was an oddball trial!\n');
end
if ucs == 1
fprintf('This was a UCS trial!\n');
Log(TimeStartShock,5,NaN);%UCS delivery...This is done here to not waste time there
end
end
function SetParams
%mrt business
p.mrt.dummy_scan = 0;%this will wait until the 6th image is acquired.
p.mrt.LastScans = 5;%number of scans after the offset of the last stimulus
p.mrt.tr = 1;%in seconds.
%will count the number of events to be logged
p.var.event_count = 0;
%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% relative path to stim and experiments
%Path Business.
[~, hostname] = system('hostname');
p.hostname = deblank(hostname);
if strcmp(p.hostname,'triostim1')
p.path.baselocation = 'C:\USER\onat\Experiments\fearamy';
elseif strcmp(p.hostname,'etpc')
p.path.baselocation = 'C:\Users\onat\Documents\Experiments\';
elseif ismac
p.path.baselocation = '/Users/onat/Documents/Experiments/FearGen_IC/';
end
p.path.experiment = [p.path.baselocation filesep];
p.path.stim = '/Users/onat/Documents/Code/Matlab/ptb/bin/fearamy_scanner/';
p.path.stim24 = [p.path.stim '24bit' filesep];
p.path.stim_cut = [p.path.stim 'cut' filesep];
%
p.subID = sprintf('s%02d',subject);
timestamp = datestr(now,30);
p.path.subject = [p.path.experiment 'tmp' filesep p.subID '_' timestamp filesep ];
p.path.finalsubject = [p.path.experiment p.subID '_' timestamp filesep ];
p.path.path_edf = [p.path.subject 'eye' filesep];
p.path.edf = sprintf([p.subID 'p%02d.edf' ],phase);
p.path.path_param = [p.path.subject 'stimulation' filesep 'data.mat'];
%create folder hierarchy
mkdir(p.path.subject);
mkdir([p.path.subject 'scr']);
mkdir([p.path.subject 'eye']);
mkdir([p.path.subject 'stimulation']);
mkdir([p.path.subject 'midlevel']);
%% %%%%%%%%%%%%%%%%%%%%%%%%%
%get stim files
[p.stim.files p.stim.label] = FileMatrix([p.path.stim '*.bmp']);
[p.stim.files_cut p.stim.label] = FileMatrix([p.path.stim_cut '*.png']);
p.stim.tFile = size(p.stim.files,1);%number of different files (including the UCS symbol)
p.stim.tFace = 8;%number of faces.
%
display([mat2str(p.stim.tFile) ' found in the destination.']);
%set the background gray according to the background of the stimuli
for i = 1:p.stim.tFace;
im = imread(p.stim.files(i,:));
bg(i) = im(1,1,1);
end
%is all the captured bg values the same?
if sum(diff(bg))==0;
%if so take it as the bg color
p.stim.bg = double([bg(1) bg(1) bg(1)]);
else
fprintf('background luminance was not successfully detected...\n')
keyboard;
end
%bg of the rating screen.
p.stim.bg_rating = p.stim.bg;
p.stim.white = [255 255 255];
%% font size and background gray level
p.text.fontname = 'Times New Roman';
p.text.fontsize = 30;
p.text.fixsize = 60;
%rating business
p.rating.division = 10;%number of divisions for the rating slider
p.rating.repetition = 2;%how many times a given face has to be repeated...
%% get the actual stim size (assumes all the same)
info = imfinfo(p.stim.files(1,:));
p.stim.width = info.Width;
p.stim.height = info.Height;
%% keys to be used during the experiment
%1, 6 ==> Right
%2, 7 ==> Left
%3, 8 ==> Down
%4, 9 ==> Up (confirm)
%5 ==> Pulse from the scanner
p.keys.confirm = KbName('UpArrow');
p.keys.increase = KbName('RightArrow');
p.keys.decrease = KbName('LeftArrow');
p.keys.pulse = KbName('5%');
p.keys.el_calib = KbName('v');
p.keys.el_valid = KbName('c');
if ismac
p.keys.escape = KbName('escape');
else
p.keys.escape = KbName('esc');
end
p.keys.enter = KbName('return');
%% %%%%%%%%%%%%%%%%%%%%%%%%%
%Communication business
%parallel port
p.com.lpt.address = 888;
%codes for different events
p.com.lpt.digitimer = 12;%8
p.com.lpt.mBlock = 128;
p.com.lpt.StimOnset = 64;
p.com.lpt.oddball = 32;
p.com.lpt.ucs = 16;
%
%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%timing business
%these are the intervals of importance
%time2fixationcross->cross2onset->onset2shock->shock2offset
%these (duration.BLA) are average duration values:
p.duration.stim = 1.5;%2;%s
p.duration.shock = 0.1;%s;x
p.duration.shockpulse = 0.005;%ms; duration of each individual pulses
p.duration.intershockpulse = 0.01;%ms; and the time between each pulse
p.duration.onset2shock = p.duration.stim - p.duration.shock;
p.duration.crossmoves = p.duration.stim./2;
p.duration.keep_recording = 0.25;%this is the time we will keep recording (eye data) after stim offset.
p.duration.prestim = .85;
%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%stimulus sequence
if phase == 0
seq(subject,csp).cond_id = Shuffle([0 1 2 3 4 5 6 7 8 10]);
seq(subject,csp).tTrial = length(seq(subject,csp).cond_id);
seq(subject,csp).ucs = zeros(1,seq(subject,csp).tTrial);
seq(subject,csp).oddball = seq(subject,csp).cond_id == 10;
seq(subject,csp).isi = PsychRandSample([3 4.5],[1 seq(subject,csp).tTrial]);
seq(subject,csp).stim_id = seq(subject,csp).cond_id;
seq(subject,csp).stim_id(seq(subject,csp).cond_id == 10) = 9;
seq(subject,csp).dist = 1:10;
seq(subject,csp).CrossPosition = ones(1,seq(subject,csp).tTrial);
seq(subject,csp).mblock = ones(1,seq(subject,csp).tTrial);
elseif phase == 1
load([fileparts(which('exp_FearAmy.m')) '/bin/fearamy_seq.mat']);
end
%this will deal all the presentation sequence related information
p.presentation = seq(subject,csp);
clear seq
%% create the randomized design
p.stim.cs_plus = csp;%index of cs stimulus, this is the one paired to shock
p.stim.cs_neg = csn;
%Record which Phase are we going to run in this run.
p.stim.phase = phase;
p.out.rating = [];
p.out.log = zeros(1000000,4).*NaN;
p.out.response = zeros(p.presentation.tTrial,1);
p.out.ShockFactor = 2;
%%
p.out.PainThreshold = PainThreshold;
p.var.current_bg = p.stim.bg;%current background to be used.
%Save the stuff
save(p.path.path_param,'p');
%
function [FM labels] = FileMatrix(path)
%Takes a path with file extension associated to regexp (e.g.
%C:\blabl\bla\*.bmp) returns the file matrix
dummy = dir(path);
FM = [repmat([fileparts(path) filesep],length(dummy),1) vertcat(dummy(:).name)];
labels = {dummy(:).name};
end
end
function AskStimRating
p.var.ExpPhase = 5;
p.var.current_bg = p.stim.bg_rating;
%% create the order of presentation and balance the position of fixation cross
nseq = 0;
rating_seq = [];
pos1_seq = [];
idx = [];
face_order = 1:p.stim.tFace;
while nseq < p.rating.repetition
nseq = nseq + 1;
[dummy idx] = Shuffle( face_order );
rating_seq = [rating_seq dummy];
%this balances both directions
pos1_seq = [pos1_seq ones(1,p.stim.tFace)];%+1 to make [0 1] --> [1 2]
end
rating_seq = rating_seq(:);
pos1_seq = pos1_seq(:);
%%
message = GetText(11);
SliderTextL = GetText(13);
SliderTextR = GetText(12);
% set the background to different color
Screen('FillRect', p.ptb.w , p.var.current_bg );
Screen('Flip',p.ptb.w);
WaitSecs(2);
%
ShowInstruction(7,1);
rect = [p.ptb.width*0.2 p.ptb.midpoint(2) p.ptb.width*0.6 100];%for the rating slider
tRatend = length(rating_seq);
%save the rating sequence just for security
p.out.rating_seq = rating_seq;
p.out.pos1_seq = pos1_seq;
%run over all the pictures to be rated.
for nRatend = 1:tRatend;
%
%the variable that are used by Trial function
stim_id = rating_seq(nRatend);
fix_y = pos1_seq(nRatend);
%
next_stim_id = [];%this is a trick, otherwise a fixation cross appears right before the rating :(
next_pos1 = [];
%
%to send know the distance here, little dummy setup:
dummy = -135:45:180;
dist = dummy(stim_id);
% show the picture
%Trial(nTrial ,TimeStimOnset , prestimdur, stim_id , ucs , fix_i, oddball, dist,microblock_jump,mblock_id)
Trial(1000+nRatend,GetSecs+1,p.duration.prestim,stim_id,0,fix_y,0,dist,0,0);
% show the slider
rate(nRatend,1) = RatingSlider(rect, p.rating.division, Shuffle(1:p.rating.division,1), p.keys.increase, p.keys.decrease, p.keys.confirm, {SliderTextL{1} SliderTextR{1}},message,1);
%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%Verbose the rating of the subject
fprintf('============\nRating Results %d (%d/%d):\n', stim_id, nRatend, tRatend);
dummy = rating_seq(1:nRatend);%trials shown so far
for iii = 1:p.stim.tFace
r = round(mean(rate(dummy == iii)));
if isnan(r)
r = 0;
end
if iii == p.stim.cs_plus
fprintf('Stimulus %02d: * %s \n',iii,repmat('+',1,1+r));
else
fprintf('Stimulus %02d: %s \n',iii,repmat('+',1,1+r));
end
end
end
%sort the stim_ids and then sort the same the rates and make a
%matrix out of that to store
[~, i] = sort(rating_seq);
rate = reshape(rate(i),p.rating.repetition,p.stim.tFace)';
p.out.rating = rate;
save(p.path.path_param,'p');
Screen('FillRect',p.ptb.w,p.var.current_bg);
%
save(p.path.path_param,'p');
end
function [rating] = RatingSlider(rect,tSection,position,up,down,confirm,labels,message,numbersOn)
%
%Detect the bounding boxes of the labels.
for nlab = 1:2
[~ , ~, bb(nlab,:)]=DrawFormattedText(p.ptb.w,labels{nlab}, 'center', 'center', p.stim.white,[],[],[],2);
Screen('FillRect',p.ptb.w,p.var.current_bg);
end
bb = max(bb);
bb_size = bb(3)-bb(1);%vertical size of the bb.
%
DrawSkala;
ok = 1;
while ok == 1
[secs, keyCode, ~] = KbStrokeWait(p.ptb.device);
keyCode = find(keyCode);
Log(secs,7,keyCode);
if length(keyCode) == 1%this loop avoids crashes to accidential presses of meta keys
if (keyCode == up) || (keyCode == down)
next = position + increment(keyCode);
if next < (tSection+1) && next > 0
position = position + increment(keyCode);
end
DrawSkala;
elseif keyCode == confirm
WaitSecs(0.1);
ok = 0;
Screen('FillRect',p.ptb.w,p.var.current_bg);
t=Screen('Flip',p.ptb.w);
end
end
end
function DrawSkala
%rating = tSection - position + 1;
rating = position ;
increment([up down]) = [1 -1];%delta
tick_x = linspace(rect(1),rect(1)+rect(3),tSection+1);%tick positions
tick_size = rect(3)./tSection;
ss = tick_size/5*0.9;%slider size.
%
for tick = 1:length(tick_x)%draw ticks
Screen('DrawLine', p.ptb.w, [255 0 0], tick_x(tick), rect(2), tick_x(tick), rect(2)+rect(4) , 3);
if tick <= tSection && numbersOn
Screen('TextSize', p.ptb.w,p.text.fontsize);
DrawFormattedText(p.ptb.w, mat2str(tick) , tick_x(tick)+ss/2, rect(2)+rect(4), p.stim.white);
Screen('TextSize', p.ptb.w,p.text.fontsize);
end
if tick == 1
DrawFormattedText(p.ptb.w, labels{1},tick_x(tick)-bb_size*1.4,rect(2), p.stim.white);
elseif tick == tSection+1
DrawFormattedText(p.ptb.w, labels{2},tick_x(tick)+bb_size*0.4,rect(2), p.stim.white);
end
end
%slider coordinates
slider = [ tick_x(position)+tick_size*0.1 rect(2) tick_x(position)+tick_size*0.9 rect(2)+rect(4)];
%draw the slider
Screen('FillRect',p.ptb.w, p.stim.white, round(slider));
Screen('TextSize', p.ptb.w,p.text.fontsize);
DrawFormattedText(p.ptb.w,message, 'center', p.ptb.midpoint(2)*0.2, p.stim.white,[],[],[],2);
Screen('TextSize', p.ptb.w,p.text.fontsize);
t = Screen('Flip',p.ptb.w);
Log(t,-2,NaN);
end
end
function ShowInstruction(nInstruct,waitforkeypress,varargin)
%ShowInstruction(nInstruct,waitforkeypress)
%if waitforkeypress is 1, ==> subject presses a button to proceed
%if waitforkeypress is 0, ==> text is shown for VARARGIN seconds.
[text]= GetText(nInstruct);
ShowText(text);
if waitforkeypress %and blank the screen as soon as the key is pressed
KbStrokeWait(p.ptb.device);
else
WaitSecs(varargin{1});
end
Screen('FillRect',p.ptb.w,p.var.current_bg);
t = Screen('Flip',p.ptb.w);
function ShowText(text)
Screen('FillRect',p.ptb.w,p.var.current_bg);
DrawFormattedText(p.ptb.w, text, 'center', 'center',p.stim.white,[],[],[],2,[]);
t=Screen('Flip',p.ptb.w);
Log(t,-1,nInstruct);
%show the messages at the experimenter screen
fprintf('=========================================================\n');
fprintf('Text shown to the subject:\n');
fprintf(text);
fprintf('=========================================================\n');
end
end
function [text]=GetText(nInstruct)
if nInstruct == 0%Eyetracking calibration
text = ['Wir kalibrieren jetzt den Eye-Tracker.\n\n' ...
'Bitte fixieren Sie die nun folgenden weißen Kreise und \n' ...
'bleiben so lange darauf, wie sie zu sehen sind.\n\n' ...
'Nach der Kalibrierung dürfen Sie Ihren Kopf nicht mehr bewegen.\n'...
'Sollten Sie Ihre Position noch verändern müssen, tun Sie dies jetzt.\n'...
'Die beste Position ist meist die bequemste.\n\n'...
'Bitte drücken Sie jetzt den oberen Knopf, \n' ...
'um mit der Kalibrierung weiterzumachen.\n' ...
];
elseif nInstruct == 1%first Instr. of the training phase.
text = ['Wir werden nun als erstes einen Übungsdurchgang machen,\n' ...
'damit Sie sich an Ihre Aufgabe gewöhnen können.\n' ...
'In diesem Durchgang können Sie sich vollkommen sicher fühlen,\n' ...
'es werden keine akustischen Reize verabreicht.\n' ...
'Eine wichtige grundsätzliche Regel ist, dass Sie das Fixationskreuz (das ?+?)\n' ...
'wenn es zu sehen ist, mit Ihren Augen fixieren. \n' ...
'\n'...
'Drücken Sie die obere Taste um fortzufahren.\n' ...
];
elseif nInstruct == 2%second Instr. of the training phase.
text = ['Ein paar Bemerkungen zu den Zielreizen: \n' ...
'Zur Erinnerung: Zielreize sind die Gesichter mit Sommersprossen.\n' ...
'Sobald ein solcher Zielreiz erscheint, \n' ...
'sollen Sie schnellstmöglich die obere Taste drücken, \n' ...
'und zwar bevor der Zielreiz wieder verschwunden ist \n' ...
'(Sie müssen also sehr schnell und aufmerksam sein).\n\n' ...
'Drücken Sie die obere Taste um fortzufahren.\n' ...
];
elseif nInstruct == 299%short instruction before localizer
text = ['Die Kalibrierung war erfolgreich.\n'...
'Es startet nun eine kurze Vormessung (~2 min), während der Sie nichts tun müssen.\n\n'...
];
elseif nInstruct == 3%third Instr. of the training phase.
text = ['Wir sind jetzt kurz vor Beginn des Experiments.\n'...
'Wir möchten Sie nun noch einmal an die wichtigsten Punkte erinnern.\n\n'...
'Drücken Sie jeweils die obere Taste um fortzufahren.\n' ...
];
elseif nInstruct == 301%third Instr. of the training phase.
text = ['1/ Folgen Sie immer streng den Fixationskreuzen.\n'...
];
elseif nInstruct == 302%third Instr. of the training phase.
text = ['2/ Drücken Sie die Taste, sobald Sie den Zielreiz entdecken.\n'...
];
%elseif nInstruct == 303%third Instr. of the training phase.
% text = ['3/ Bewegen Sie sich nicht.\n'...
% ];
%elseif nInstruct == 304%third Instr. of the training phase.
% text = ['4/ Lassen Sie sich vom Scannergeschehen nicht stören.\n'...
% ];
elseif nInstruct == 305%third Instr. of the training phase.
text = ['5/ Nur eines der Gesichter wird mit einem akustischen Reiz gepaart.\n'...
];
elseif nInstruct == 306%third Instr. of the training phase.
text = ['Drücken Sie jetzt die obere Taste, das Experiment startet dann in wenigen Sekunden.\n' ...
];
elseif nInstruct == 4%third Instr. of the training phase.
text = ['Vor dem Experiment legen wir nun \n' ...
'die Unangenehmheitsschwelle des akustischen Reizes \n' ...
'für den Rest des Experiments fest. \n' ...
'Drücken Sie die obere Taste um fortzufahren.\n' ...
];
elseif nInstruct == 7;%rating
text = ['In dieser Phase hätten wir gerne, dass Sie die Gesichter\n'...
'im Hinblick auf folgende Frage bewerten:\n'...
'?Wie wahrscheinlich ist es, bei dem gerade gesehenen Gesicht \n'...
'einen akustischen Reiz zu erhalten??\n'...
'Bewegen Sie den Zeiger mit der rechten und linken Taste\n'...
'und bestätigen Sie Ihre Einschätzung mit der oberen Taste.\n'...
];
elseif nInstruct == 8;%AskDetectionSelectable
text = ['Sie sehen nun noch einmal eine Übersicht der verschiedenen Gesichter.\n'...
'Bitte geben Sie an, welches der Gesichter Ihrer Meinung nach\n mit dem Schock gepaart wurde.\n\n'...
'Nutzen Sie die linke und rechte Taste, um die Markierung\n zum richtigen Gesicht zu navigieren,\n'...
'und drücken Sie die obere Taste zum Bestätigen.\n\n'...
'Bitte zum Starten die obere Taste drücken.\n'...
];
elseif nInstruct == 801;%AskDetectionSelectable
text = ['Sie sehen nun eine Übersicht der verschiedenen Gesichtern.\n'...
'Bitte schauen Sie sich die Gesichter aufmerksam an.\n'...
'Bitte drücken Sie zum Start die obere Taste und\n' ...
'fixieren Sie das anschließend erscheinende Fixationskreuz.\n'...
];
elseif nInstruct == 9%
%=================================================================================================================%
text = ['Bitte geben Sie an, ob die Reizstärke des folgenden akustischen Reizes\n f?r Sie unangenehm ist.\n'...
'\n'...
'Drücken Sie bitte die obere Taste um den Reiz zu bekommen.\n'...
];
elseif nInstruct == 10%just before the shock
text = ['Reiz kommt...\n'];
elseif nInstruct == 11%this is the rating question
text = ['Wie wahrscheinlich ist es, bei dem gerade gesehenen Gesicht \n'...
'einen elektrischen Schock zu erhalten??\n' ...
'Bewegen Sie den "Zeiger" mit der rechten und linken Taste\n' ...
'und bestätigen Sie Ihre Einschätzung mit der oberen Taste'...
];
elseif nInstruct == 12 %These two below are the possible responses to the question in 11
text = {'Sehr\nwahrscheinlich'};
elseif nInstruct == 13
text = {'überhaupt\nnicht\nwahrscheinlich'};
elseif nInstruct == 14
text = ['Danke. Den aktiven Teil des Experiment haben Sie nun geschafft.\n'...
%'Es folgt nun noch eine strukturelle Messung, die ca. 7 Minuten dauert.\n'...
%'Sie k?nnen dabei ruhig die Augen schlie?en und sich entspannen.\n'];
else
text = {''};
end
end
function SetPTB
%KbName('UnifyKeyNames');
%Sets the parameters related to the PTB toolbox. Including
%fontsizes, font names.
%Default parameters
Screen('Preference', 'SkipSyncTests', 1);
Screen('Preference', 'DefaultFontSize', p.text.fontsize);
Screen('Preference', 'DefaultFontName', p.text.fontname);
Screen('Preference', 'TextAntiAliasing',2);%enable textantialiasing high quality
Screen('Preference', 'VisualDebuglevel', 0);
Screen('Preference', 'SkipSyncTests', 1);
Screen('Preference', 'SuppressAllWarnings', 1);
%%Find the number of the screen to be opened
screens = Screen('Screens');
p.ptb.screenNumber = max(screens);%the maximum is the second monitor
%Make everything transparent for debugging purposes.
if debug
commandwindow;
PsychDebugWindowConfiguration;
end
%set the resolution correctly
res = Screen('resolution',p.ptb.screenNumber);
HideCursor(p.ptb.screenNumber);
%spit out the resolution
fprintf('Resolution of the screen is %dx%d...\n',res.width,res.height);
%Open a graphics window using PTB
[p.ptb.w p.ptb.rect] = Screen('OpenWindow', p.ptb.screenNumber, p.var.current_bg);
%Screen('BlendFunction', p.ptb.w, GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
Screen('Flip',p.ptb.w);%make the bg
p.ptb.slack = Screen('GetFlipInterval',p.ptb.w)./2;
[p.ptb.width, p.ptb.height] = Screen('WindowSize', p.ptb.screenNumber);
%find the mid position on the screen.
p.ptb.midpoint = [ p.ptb.width./2 p.ptb.height./2];
%NOTE about RECT:
%RectLeft=1, RectTop=2, RectRight=3, RectBottom=4.
p.ptb.imrect = [ p.ptb.midpoint(1)-p.stim.width/2 p.ptb.midpoint(2)-p.stim.height/2 p.ptb.midpoint(1)-p.stim.width/2+p.stim.width p.ptb.midpoint(2)-p.stim.height/2+p.stim.height];
p.ptb.cross_shift = [180 -120]./2.5;%incremental upper and lower cross positions
p.ptb.CrossPosition_x = p.ptb.midpoint(1);%bb(1);%always the same
p.ptb.CrossPosition_y = p.ptb.midpoint(2)+p.ptb.cross_shift;%bb(1);%always the same
%cross position for the eyetracker screen.
p.ptb.CrossPositionET_x = [p.ptb.midpoint(1) p.ptb.midpoint(1)];
p.ptb.CrossPositionET_y = [p.ptb.midpoint(2)-p.ptb.cross_shift(2) p.ptb.midpoint(2)+p.ptb.cross_shift(2)];
p.ptb.fc_size = 10;
%
%%
%priorityLevel=MaxPriority(['GetSecs'],['KbCheck'],['KbWait'],['GetClicks']);
Priority(MaxPriority(p.ptb.w));
%this is necessary for the Eyelink calibration
%InitializePsychSound(0)
%sound('Open')
% Beeper(1000)
LoadPsychHID
%%%%%%%%%%%%%%%%%%%%%%%%%%%Prepare the keypress queue listening.
p.ptb.device = [];
%get all the required keys in a vector
p.ptb.keysOfInterest = [];for i = fields(p.keys)';p.ptb.keysOfInterest = [p.ptb.keysOfInterest p.keys.(i{1})];end
fprintf('Key listening will be restricted to %d\n',p.ptb.keysOfInterest)
RestrictKeysForKbCheck(p.ptb.keysOfInterest);
p.ptb.keysOfInterest=zeros(1,256);
p.ptb.keysOfInterest(p.keys.confirm) = 1;
%create a queue sensitive to only relevant keys.
% KbQueueCreate(p.ptb.device,p.ptb.keysOfInterest);%default device.
%%%%%%%%%%%%%%%%%%%%%%%%%%%
%prepare parallel port communication. This relies on cogent i
%think. We could do it with PTB as well.
if ~ismac
config_io;
outp(p.com.lpt.address,0);
if( cogent.io.status ~= 0 )
error('inp/outp installation failed');
end
end
%CORRECT
%%%%%%%%%%%%%%%%%%%%%%%%%%%
%test whether CED receives the triggers correctly...
k = 0;
while ~(k == 25 | k == 86 );
pause(0.1);
outp(p.com.lpt.address,244);%244 means all but the UCS channel (so that we dont shock the subject during initialization).
fprintf('!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\n');
fprintf('1/ Red cable has to be connected to the Cogent BOX\n');
fprintf('!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\n');
fprintf('2/ D2 Connection not to forget on the LPT panel\n');
fprintf('!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\n');
fprintf('3/ Switch the SCR cable\n');
fprintf('!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\n');
fprintf('4/ Button box has to be on\n');
fprintf('!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\n');
fprintf('5/ Did the trigger test work?\n!!!!!!You MUST observe 5 pulses on the PHYSIOCOMPUTER!!!!!\n\n\nPress c to send it again, v to continue...\n')
[~, k] = KbStrokeWait(p.ptb.device);
k = find(k);
end
fprintf('Continuing...\n');
%%%%%%%%%%%%%%%%%%%%%%%%%%%
%load the pictures to the memory.
p.ptb.stim_sprites = CreateStimSprites(p.stim.files);%
p.ptb.stim_sprites_cut = CreateStimSprites(p.stim.files_cut);%
%% take care of the circle presentation
%order of faces on the circle that will be shown at the end.
if phase ~= 0
circle_order = Shuffle(unique(p.presentation.dist(p.presentation.dist < 500)));%
circle_order(end+1)=circle_order(1);
while any(abs(diff(circle_order)) < 50);%check that neighbors will not be neighbors in the next order.
circle_order = Shuffle(unique(p.presentation.dist(p.presentation.dist < 500)));
circle_order(end+1) = circle_order(1);%to be successful the check has to consider the circularity.
end
p.stim.circle_order = circle_order(1:end-1);%conditions in distances from CSP, 0 = CS+, randomized
p.stim.circle_angles = sort(p.stim.circle_order);%this is just angles with steps of 45
%transform the angles to rects
for nc = 1:p.stim.tFace
p.stim.circle_rect(nc,:) = angle2rect(p.stim.circle_angles(nc));
p.stim.circle_file_id(nc) = unique(p.presentation.stim_id(p.presentation.dist == p.stim.circle_order(nc)));%the file that corresponds to different conditions
end
%one to one mappings:
%now we have: circle_order ==> file_id
%circle_angles ==> circle_rect
end
%%
function [out]=CreateStimSprites(files)
%loads all the stims to video memory
for nStim = 1:p.stim.tFile
filename = files(nStim,:);
[im , ~, ~] = imread(filename);
out(nStim) = Screen('MakeTexture', p.ptb.w, im );
end
end
end
function [t]=StopEyelinkRecording
if EyelinkWanted
Eyelink('StopRecording');
t = GetSecs;
%this is the end of the trial scope.
WaitSecs(0.01);
Eyelink('Message', 'TRIAL_RESULT 0');
%
WaitSecs(0.01);
Eyelink('Command', 'set_idle_mode');
WaitSecs(0.01);
Eyelink('Command', 'clear_screen %d', 0);
Screen('Textsize', p.ptb.w,p.text.fontsize);
Log(t,8,NaN);
else