diff --git a/experiments/psychtoolbox/visual_crowding_preview/CP_main2.m b/experiments/psychtoolbox/visual_crowding_preview/CP_main2.m
new file mode 100644
index 00000000..1b413749
--- /dev/null
+++ b/experiments/psychtoolbox/visual_crowding_preview/CP_main2.m
@@ -0,0 +1,576 @@
+clearvars
+Screen('Preference', 'SkipSyncTests', 1);
+AssertOpenGL;
+rng('shuffle');
+
+% PARTICIPANT DATA
+name1='Participant Data';
+prompt1={'Subject Number', ...
+    'Subject ID', ...
+    'Sex (f/m)', ...
+    'Age', ...
+    'Task order'};
+numlines1=1;
+defaultanswer1={ '0', 'p', 'M', '0', '1'};
+answer1=inputdlg(prompt1,name1,numlines1,defaultanswer1);
+DEMO.num = str2double(answer1{1});
+DEMO.ID  = answer1{2};
+DEMO.sex = answer1{3};
+DEMO.age = str2double(answer1{4});
+DEMO.order = str2double(answer1{5});
+DEMO.date = datetime;
+
+if length([answer1{1} answer1{2}]) > 4
+    error('EYELINK FILENAMES NEED TO BE LESS THAN 9 CHARACTERS LONG')
+end
+
+try
+    % KEYBOARD SETUP
+    responseKeys = {'c', 'v', 'a', 'y', 'n', 'return'}; % eyelink commands
+    KbName('UnifyKeyNames');
+    KbCheckList = [KbName('space'), KbName('ESCAPE'), KbName('leftarrow'), KbName('rightarrow')];
+    for i = 1:length(responseKeys)
+        KbCheckList = [KbName(responseKeys{i}), KbCheckList];
+    end
+    RestrictKeysForKbCheck(KbCheckList);
+    ListenChar(-1)
+    % HideCursor()
+
+vpix_use = 1; % 0 if vpixx is not conected
+trigger_test = 1;
+
+if vpix_use == 1
+    %VIEW PIXX SETUP
+    Datapixx('Open');
+    Datapixx('EnablePixelMode');  % to use topleft pixel to code trigger information, see https://vpixx.com/vocal/pixelmode/
+    Datapixx('RegWr');
+    Datapixx('SetMarker');
+    Datapixx('RegWrRdVideoSync');
+end
+
+% Top left pixel that controls triggers in PixelMode
+if trigger_test == 0
+    trigRect = [0 0 1 1];
+    %centeredRect_trigger = CenterRectOnPointd(trigRect, 0.5, 0.5);
+elseif trigger_test == 1
+    trigRect = [0 0 100 100];
+    %centeredRect_trigger = CenterRectOnPointd(trigRect, 25, 25);
+end
+
+% Define trigger pixels for all usable MEG channels
+trig.ch224 = [4  0  0]; %224 meg channel
+trig.ch225 = [16  0  0];  %225 meg channel
+trig.ch226 = [64 0 0]; % 226 meg channel
+trig.ch227 = [0  1 0]; % 227 meg channel
+trig.ch228 = [0  4 0]; % 228 meg channel
+trig.ch229 = [0 16 0]; % 229 meg channel
+trig.ch230 = [0 64 0]; % 230 meg channel
+trig.ch231 = [0 0  1]; % 231 meg channel
+
+
+    s = max(Screen('Screens'));
+    % Set the background color to white during window initialization
+    [w, rect] = Screen('OpenWindow', 1, [255 255 255]); %,[200 200 1000 1000]);
+    Priority(MaxPriority(w));
+    Screen('BlendFunction', w, GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+    pixelSizes = Screen('PixelSizes', s);
+    fps = Screen('FrameRate', w);
+    ifi = Screen('GetFlipInterval', w);
+    [wx, wy] = RectCenter(rect);
+
+    % Clear the screen with the background color (white)
+    Screen('FillRect', w, [255 255 255]);
+    Screen('Flip', w);
+
+    % TRIGGERS SETUP
+    trig.SYNCTIME = 0;
+    trig.START = 1;
+    trig.PREVIEW = 2;
+    trig.SACCADE = 3;
+    trig.TARGET = 4;
+    trig.RESPONSE = 5;
+
+    % EYE-TRACKING SETUP
+    el = EyelinkInitDefaults(w);
+    el.backgroundcolour = 255;
+    el.foregroundcolour = 0;
+    el.calibrationtargetcolour = [0 0 0];
+    el.msgfontcolour = 0;
+    EyelinkUpdateDefaults(el);
+
+    if ~EyelinkInit() % 1 means enable dummy mode
+        fprintf('Eyelink Init aborted.\n');
+        Eyelink('Shutdown');
+        Screen('CloseAll');
+    end
+
+    Eyelink('command', 'screen_pixel_coords = %ld %ld %ld %ld', 0, 0, rect(4)-1, rect(3)-1);
+
+    % Link to edf data
+    Eyelink('command', 'file_event_filter = LEFT,RIGHT,FIXATION,SACCADE,BLINK,MESSAGE,BUTTON,INPUT'); WaitSecs(0.05);
+    Eyelink('command', 'file_sample_data  = LEFT,RIGHT,GAZE,HREF,AREA,GAZERES,STATUS,INPUT,HTARGET'); WaitSecs(0.05);
+
+    % Link data to Matlab
+    Eyelink('command', 'link_event_filter = LEFT,RIGHT,FIXATION,SACCADE,BLINK,MESSAGE,BUTTON,FIXUPDATE,INPUT'); WaitSecs(0.05);
+    Eyelink('command', 'link_sample_data  = LEFT,RIGHT,GAZE,GAZERES,AREA,STATUS,INPUT,HTARGET'); WaitSecs(0.05);
+    Eyelink('command', 'link_event_data = GAZE,GAZERES,HREF,AREA,VELOCITY'); WaitSecs(0.05);
+
+    edfFile = [answer1{1} '_PR_' answer1{2} '.edf'];
+    Eyelink('Openfile', edfFile);
+
+    Eyelink('command', 'calibration_type = HV6'); WaitSecs(0.05);
+    % Before recording, we place reference graphics on the host display
+    % Must be offline to draw to EyeLink screen
+    Eyelink('Command', 'set_idle_mode'); WaitSecs(0.05);
+
+    % Do setup and calibrate the eye tracker
+    EyelinkDoTrackerSetup(el); WaitSecs(0.05);
+
+    fixTolerance = 500; % 75 pixels -> 2 dva
+    targetTolerance = 100;
+
+    fixRadius = 10; % pixel -> .5 dva
+    fixRect = CenterRectOnPoint([0, 0, fixRadius*2, fixRadius*2], wx, wy);
+    fixColor = [0 0 0]; % Fixation color (black)
+    fixColorCue = [0 128 0];
+    fixBadColor = [255 0 0]; % Fixation bad color (red)
+
+    saccadeOffset = 305; % pixel -> 8 dva
+    targetDuration = .1; % seconds
+    saccThreshold = 7; % pixel -> 0.18 dva
+
+    % Extract subject ID and convert to number
+%     DEMO.num = str2double(answer1{2});
+
+    if mod(DEMO.num,2) == 0 % if 0 -> even number
+        stim_set = 'SET1';
+    else                    % if 1 -> odd number
+        stim_set = 'SET2';
+        
+    end
+    
+    stim_dir = dir(fullfile(stim_set, '*.jpg'));
+    stim_fn = {stim_dir.name};
+
+    quest_dir_fn = 'QuestImages';
+    quest_dir = dir(fullfile(quest_dir_fn, '*.jpg'));
+    quest_fn = {quest_dir.name};
+    quest_fn = quest_fn(randperm(length(quest_fn)));
+    
+    CP_table;
+    
+    % START EXPERIMENT
+    Screen('DrawText', w, 'PRESS SPACE TO START',  wx-150, wy, [0 0 0]);
+    Screen('Flip', w);
+    KbWait([], 2)
+
+    Eyelink('Command', 'SetOfflineMode');
+    Eyelink('StartRecording');
+    Screen('FillOval', w, fixColor, fixRect);
+    Screen('Flip', w);
+    WaitSecs(2);
+    trig.SYNCTIMEsecs = GetSecs();
+    Eyelink('Message', 'TRIGGER %d', trig.SYNCTIME);
+    eyeUsed = Eyelink('EyeAvailable');
+    eyeUsed = eyeUsed + 1;
+
+    goodTrial = 1;
+    nBadTrials = 0;
+    i_trial = 1;
+    numTrials = size(expTable, 1);
+    questIdx = 1;
+
+    while i_trial <= size(expTable, 1)
+
+        % PAUSE
+        if mod(i_trial, round(size(expTable, 1)/3+1)) == 0
+            Screen('DrawText', w, 'WELL DONE, TAKE A BREAK !',  wx-400, wy, [255 255 255]);
+            Screen('Flip', w);
+            KbWait([], 2)
+
+            % repeat calibration
+            Eyelink('StopRecording');
+            Eyelink('Command', 'set_idle_mode');
+            EyelinkDoTrackerSetup(el);
+            Eyelink('StartRecording');
+        end
+
+        disp('DEBUG 1')
+        % TRIAL SETTINGS (preview/target)
+        preview_fn = [stim_set '_unconnect_' num2str(expTable.connection(i_trial)) '_crowd_' num2str(expTable.crowding(i_trial)) '_' num2str(i_trial), '.jpg'];
+
+        if isfile(preview_fn)
+            previewMatrix = imread(fullfile(stim_set, preview_fn));
+            previewTexture = Screen('MakeTexture', w, previewMatrix);
+            targetTexture = previewTexture;
+            previewRect = CenterRectOnPoint([0 0 size(previewMatrix, 1) size(previewMatrix, 2)], wx + saccadeOffset * expTable.side(i_trial), wy);
+        else
+            i_trial = i_trial + 1;
+            continue;
+        end
+
+        % Trial settings for question/response
+        question_fn = ['img_' num2str(i_trial) '.jpg'];
+        questRect = CenterRectOnPoint([0 0 size(previewMatrix, 1)*2 size(previewMatrix, 2)], wx, wy);
+
+        if expTable.preview(i_trial) == 0
+            previewTexture = Screen('MakeTexture', w, fliplr(previewMatrix));
+        end
+        expTable.imageFn{i_trial} = preview_fn;
+        
+        if expTable.questionType(i_trial) == 0
+            questionTexture = targetTexture;
+            
+        else
+            if questIdx <= length(quest_fn)
+                selectedTexture = quest_fn{questIdx};
+                selectedTextureMatrix = imread(fullfile(quest_dir_fn, selectedTexture));
+                questionTexture = Screen('MakeTexture', w, selectedTextureMatrix);
+                questIdx = questIdx + 1;
+            end
+        end
+% %         expTable.questionFn{i_trial} = question_fn;
+
+
+        % OFFSCREEN WINDOWS
+        wFixation = Screen('OpenOffscreenWindow', w, 255);
+        Screen('FillOval', wFixation, fixColor, fixRect);
+        
+        wPreview = Screen('OpenOffscreenWindow', w, 255);
+        Screen('FillOval', wPreview, fixColor, fixRect);
+        Screen('DrawTexture', wPreview, previewTexture, [], previewRect);
+        
+        wCue = Screen('OpenOffscreenWindow', w, 255);
+        Screen('FillOval', wCue, fixColorCue, fixRect);
+        Screen('DrawTexture', wCue, previewTexture, [], previewRect);
+
+        wTarget = Screen('OpenOffscreenWindow', w, 255);
+        Screen('FillOval', wTarget, fixColorCue, fixRect);
+        Screen('DrawTexture', wTarget, targetTexture, [], previewRect);
+
+        wQuestion = Screen('OpenOffscreenWindow', w, 255);
+        Screen('DrawTexture', wQuestion, questionTexture, [], questRect);
+        Screen('DrawText', wQuestion, 'yes', wx - 305, wy + 150, fixColor);
+        Screen('DrawText', wQuestion, 'no', wx + 305, wy + 150, fixColor);
+disp('DEBUG 2')
+
+        % ITI
+        Screen('DrawTexture', w, wFixation);
+        Screen('Flip', w);
+        if nBadTrials > 10
+            nBadTrials = 0;
+            % repeat calibration
+            Eyelink('StopRecording');
+            Eyelink('Command', 'set_idle_mode');
+            EyelinkDoTrackerSetup(el);
+            Eyelink('StartRecording');
+        end
+        WaitSecs(1);
+
+        % FIXATION
+        goodTrial = 1;
+        errorMsg = 'BAD TRIAL';
+        Screen('FillOval', w, fixColor, fixRect);
+        Screen('Flip', w);
+
+        % for Eyelink
+        fixOnsetTime = GetSecs();
+        expTable.fixStartTime(i_trial) = GetSecs();
+        Eyelink('Message', 'TRIGGER %d', trig.START);
+
+        % for MEG
+        fixationOnsetTimeMEG = Datapixx('GetMarker');
+        Screen('FillRect', w, trig.ch224, trigRect);
+        Screen('Flip', w);
+        Screen('FillRect', w, black, trigRect);
+        Screen('Flip', w);
+
+        expTable.fixDuration(i_trial) = (1000+randperm(500,1))/1000; % random fixation duration
+        eyeX = nan; eyeY = nan;
+disp('DEBUG 3')
+        while goodTrial
+            [~,~, keyCode] = KbCheck();
+            if find(keyCode) == KbName('escape')
+                ShowCursor()
+                RestrictKeysForKbCheck([]);
+                Screen(w,'Close');
+                sca;
+                ListenChar(0)
+                return;
+            end
+            
+            if Eyelink('NewFloatSampleAvailable')
+                eyeSample = Eyelink('NewestFloatSample');
+                eyeX = eyeSample.gx(eyeUsed);
+                eyeY = eyeSample.gy(eyeUsed);
+
+                if eyeX~=el.MISSING_DATA && eyeY~=el.MISSING_DATA % no blinks
+                    dist_center = sqrt( (eyeX-wx)^2 + (eyeY-wy)^2 );
+                    if dist_center < fixTolerance % fixation is good
+                        if GetSecs() - expTable.fixStartTime(i_trial) > expTable.fixDuration(i_trial) % fixation is long enough
+                            break;
+                        end
+                    else
+                        for i=1:3
+                            Screen('FillRect', w, fixBadColor, fixRect);
+                            Screen('Flip', w);
+                            WaitSecs(.1);
+                            Screen('Flip', w);
+                            WaitSecs(.1);
+                        end
+                        Screen('FillOval', w, fixColor, fixRect);
+                        Screen('Flip', w);
+                        expTable.fixStartTime(i_trial) = GetSecs();
+                        Eyelink('Message', 'TRIGGER %d', trig.START);
+
+        Screen('FillRect', w, trig.ch224, trigRect);
+        Screen('Flip', w);
+        Screen('FillRect', w, black, trigRect);
+        Screen('Flip', w);
+
+
+                    end
+                else % blink
+                    expTable.fixStartTime(i_trial) = GetSecs();
+                    Eyelink('Message', 'TRIGGER %d', trig.START);
+
+        Screen('FillRect', w, trig.ch224, trigRect);
+        Screen('Flip', w);
+        Screen('FillRect', w, black, trigRect);
+        Screen('Flip', w);
+
+
+                end
+            end
+
+            if GetSecs() - fixOnsetTime > 10
+                errorMsg = 'BAD FIXATION';
+                Eyelink('StopRecording');
+                EyelinkDoTrackerSetup(el);
+                Eyelink('StartRecording');
+                goodTrial = 0;
+            end
+        end
+
+        % PREVIEW AND CUE
+        Screen('DrawTexture', w, wPreview);
+        Screen('Flip', w);
+        expTable.previewOnsetTime(i_trial) = GetSecs();
+        Eyelink('Message', 'TRIGGER %d', trig.PREVIEW);
+
+                % for MEG
+        previewOnsetTimeMEG = Datapixx('GetMarker');
+        Screen('FillRect', w, trig.ch225, trigRect);
+        Screen('Flip', w);
+        Screen('FillRect', w, black, trigRect);
+        Screen('Flip', w);
+
+
+        saccTrigger = 0;
+        
+        while goodTrial
+            [~,~, keyCode] = KbCheck();
+            if find(keyCode) == KbName('escape')
+                ShowCursor()
+                RestrictKeysForKbCheck([]);
+                Screen(w,'Close');
+                sca;
+                ListenChar(0)
+                return;
+            end
+            
+            if Eyelink('NewFloatSampleAvailable')
+                eyeSample = Eyelink('NewestFloatSample');
+                eyeX = eyeSample.gx(eyeUsed);
+                eyeY = eyeSample.gy(eyeUsed);
+
+                if eyeX~=el.MISSING_DATA && eyeY~=el.MISSING_DATA % no blinks
+                    dist_center = sqrt( (eyeX-wx)^2 + (eyeY-wy)^2 );
+                    if dist_center < fixTolerance % fixation is good
+                        if GetSecs() - expTable.fixStartTime(i_trial) > expTable.fixDuration(i_trial)+.5 % fixation is long enough
+                            Screen('DrawTexture', w, wCue);
+                            Screen('Flip', w);
+                            break;
+                        end
+                    else
+                        goodTrial = 0;
+                    end
+                else % blink
+                    goodTrial = 0;
+                end
+            end
+        end
+
+        Eyelink('Message', 'TRIGGER %d', trig.SACCADE);
+        Screen('FillRect', w, trig.ch226, trigRect);
+        Screen('Flip', w);
+        Screen('FillRect', w, black, trigRect);
+        Screen('Flip', w);
+
+        
+        while goodTrial
+            % detect saccadeOnset with threshold
+            if Eyelink('NewFloatSampleAvailable')
+                eyeSample = Eyelink('NewestFloatSample');
+                newEyeX = eyeSample.gx(eyeUsed) - eyeX;
+                eyeX = newEyeX;
+                disp(['EyeX: ', num2str(eyeX)]); % Debugging output
+
+                if abs(newEyeX) > saccThreshold % if neeyeX > over the imaginary boundary
+                    saccTrigger = saccTrigger+1;
+                    if saccTrigger>1
+                        expTable.saccadeOnsetTime(i_trial) = GetSecs();
+                        disp('Saccade detected'); % Debugging output
+                        
+                        break;
+                    end
+                else
+                    saccTrigger=0;
+                end
+            end
+        end
+
+        % TARGET
+        Screen('DrawTexture', w, wTarget);
+        Screen('Flip', w);
+        Screen('FillRect', w, [255 255 255]);
+        Screen('Flip', w);
+        WaitSecs(1)
+        expTable.targetOnsetTime(i_trial) = GetSecs();
+        Eyelink('Message', 'TRIGGER %d', trig.TARGET);
+
+        Screen('FillRect', w, trig.ch227, trigRect);
+        Screen('Flip', w);
+        Screen('FillRect', w, black, trigRect);
+        Screen('Flip', w);
+
+        while goodTrial
+            [~, ~, keyCode] = KbCheck();
+            if find(keyCode) == KbName('escape')
+                ShowCursor();
+                RestrictKeysForKbCheck([]);
+                Screen('CloseAll');
+                sca;
+                ListenChar(0);
+                return; % Exit the script
+            elseif Eyelink('NewFloatSampleAvailable')
+                eyeSample = Eyelink('NewestFloatSample');
+                eyeX = eyeSample.gx(eyeUsed);
+                eyeY = eyeSample.gy(eyeUsed);
+
+                if eyeX~=el.MISSING_DATA && eyeY~=el.MISSING_DATA % if there are no blinks
+                    % dist_target = sqrt( (eyeX- (wx+saccadeOffset*expTable.side(i_trial)) )^2 + (eyeY-wy)^2 );
+                    dist_target = eyeX - (wx+saccadeOffset*expTable.side(i_trial));
+                    disp(['dist_target: ', num2str(dist_target)]);
+                    if dist_target < fixTolerance % and the saccade landed inside the word
+                        if GetSecs() - expTable.targetOnsetTime(i_trial) > targetDuration % and they fixated the word long enough
+                            break;
+                        end
+                    else
+                        errorMsg = 'BAD SACCADE';
+                        goodTrial = 0;
+                    end
+                else % blink
+                    errorMsg = 'BAD BLINK';
+                    goodTrial = 0;
+                end
+            end
+        end
+
+        % RESPONSE
+        Screen('DrawTexture', w, wQuestion);
+        Screen('Flip', w);
+        expTable.questionOnsetTime(i_trial) = GetSecs();
+        % expTable.responseOnsetTime(i_trial) = GetSecs();
+
+        if goodTrial
+            nBadTrials = 0;
+             [response, ResponseTime] = getButton();
+            if ResponseTime - expTable.questionOnsetTime(i_trial) > 1.5 % slow response
+                Screen('DrawText', w, 'TOO SLOW !!',  wx - 150, wy, [0 0 0]);
+                Screen('Flip', w); WaitSecs(2);
+                errorMsg = 'SLOW RT';
+                Eyelink('Message', ['BAD :' errorMsg]);
+                expTable(end + 1, :) = expTable(i_trial, :);
+                expTable(i_trial, :) = [];
+                nBadTrials = nBadTrials + 1;
+                Eyelink('command', ['record_status_message "TRIAL BAD :' errorMsg '" ']);
+            elseif find(keyCode) == KbName('escape') % exit response
+                ShowCursor();
+                RestrictKeysForKbCheck([]);
+                Screen('CloseAll');
+                sca;
+                ListenChar(0);
+                return; % Exit the script
+
+            elseif response == 8 || response == 9 %good response 8 is yellow (yes)/ 9 is red (no)
+                Eyelink('Message', 'TRIGGER %d', trig.RESPONSE);
+                Screen('FillRect', w, trig.ch228, trigRect);
+                Screen('Flip', w);
+                Screen('FillRect', w, black, trigRect);
+                Screen('Flip', w);
+
+                % Response correctness
+                % if keyCode(KbName('y'))
+                %     response = num2str('y');
+                % elseif keyCode(KbName('n'))
+                %     response = num2str('n');
+                % end
+
+                expTable.response(i_trial) = response;
+                expTable.responseOnsetTime(i_trial) = ResponseTime;
+
+                if (targetTexture == questionTexture && response == 8) || (targetTexture ~= questionTexture && response == 9)
+                    expTable.correctness(i_trial) = 1; % response correct
+                else
+                    expTable.correctness(i_trial) = 0; % response not correct
+                end
+
+                Eyelink('Message',  ['COND ' num2str(expTable.preview(i_trial)) num2str(expTable.side(i_trial)+1) num2str(expTable.crowding(i_trial))]);
+
+                i_trial = i_trial + 1;
+                Eyelink('command', 'record_status_message "TRIAL %d/%d"', i_trial, size(expTable, 1));
+            end
+        else
+            disp(errorMsg)
+            Eyelink('Message', ['BAD :' errorMsg]);
+            expTable(end + 1, :) = expTable(i_trial, :);
+            expTable(i_trial, :) = [];
+            nBadTrials = nBadTrials + 1;
+            Eyelink('command', ['record_status_message "TRIAL BAD :' errorMsg '" ']);
+        end
+    end
+    
+    % SAVE DATA
+    EXP.DEMO = DEMO;
+    EXP.data = expTable;
+    EXP.trig = trig;
+    EXP.stim = stim_fn;
+    save([answer1{1} '_PREVIEW_' answer1{2} '.mat'], 'EXP')
+
+    % SAVE EYE DATA
+    Eyelink('StopRecording');
+    Eyelink('CloseFile');
+    Eyelink('ReceiveFile');
+    Eyelink('ShutDown');
+
+    Datapixx('DisablePixelMode');
+    Datapixx('RegWr');
+    Datapixx('Close');
+
+    % FINISH EXPERIMENT
+    ShowCursor();
+    RestrictKeysForKbCheck([]);
+    Screen('CloseAll');
+    sca;
+    ListenChar(0);
+
+catch
+    % FINISH EXPERIMENT
+    ShowCursor();
+    RestrictKeysForKbCheck([]);
+    Screen('CloseAll');
+    sca;
+    ListenChar(0);
+    rethrow(lasterror);
+end
diff --git a/experiments/psychtoolbox/visual_crowding_preview/CP_table.m b/experiments/psychtoolbox/visual_crowding_preview/CP_table.m
new file mode 100644
index 00000000..0c6f0596
--- /dev/null
+++ b/experiments/psychtoolbox/visual_crowding_preview/CP_table.m
@@ -0,0 +1,28 @@
+side = [-1 1];
+SET = [0 1];
+preview = [0 1];
+quesionType = [0 1];
+crowding = [1 2 3];
+connection = [0 1 2 3];
+
+expTable = [];
+i_trial = 1;
+
+for i_side = 1:length(side)
+    for i_SET = 1:length(SET)
+        for i_preview = 1:length(preview)
+            for i_questionType = 1:length(quesionType)
+                for i_crowding = 1:length(crowding)
+                    for i_connection = 1:length(connection)
+                    expTable(i_trial,:) = [side(i_side),SET(i_SET), preview(i_preview), quesionType(i_questionType), crowding(i_crowding), connection(i_connection)];
+                    i_trial = i_trial+1;
+                    end
+                end
+            end
+        end
+    end
+end
+
+expLabels = {'side','SET', 'preview','questionType', 'crowding', 'connection'};
+expTable = expTable(randperm(size(expTable,1)), :); % randomize
+expTable = array2table(expTable, 'VariableNames',expLabels);
\ No newline at end of file
diff --git a/experiments/psychtoolbox/visual_crowding_preview/QuestImages/img_1.jpg b/experiments/psychtoolbox/visual_crowding_preview/QuestImages/img_1.jpg
new file mode 100644
index 00000000..54fefcc7
Binary files /dev/null and b/experiments/psychtoolbox/visual_crowding_preview/QuestImages/img_1.jpg differ
diff --git a/experiments/psychtoolbox/visual_crowding_preview/QuestImages/img_100.jpg b/experiments/psychtoolbox/visual_crowding_preview/QuestImages/img_100.jpg
new file mode 100644
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 Contact for this experiment:
 
-Tasnim Ezzedin te2207@nyu.edu
\ No newline at end of file
+Tasnim Ezzedin te2207@nyu.edu
+
+
+Description of the experiment
+
+
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