mpib_memoreye/task/showing_object1_jitter.m

        OnsetResp=0;          
        rt_catch = 0;
        resp_text = 0;
        resp_catch = 'No_Response'; %Just in case we don't have response
                
        % Screen priority
        Priority(MaxPriority(window1));
        Priority(2);
        
        % Show fixation cross
        
        drawCross(window1,W,H,barColor);
        tFixation = Screen('Flip', window1);
        
        Screen(window1, 'FillRect', backgroundColor);
        Screen('Flip', window1, tFixation + (fixationDuration + rand(1))- slack,0) %Adding between 0 and 1 second randomly to the minimum for the fixation duration
              
        % Show Object 1
        
        Screen('DrawTexture', window1, objectodisplay, [], positiontodisplay,rottodisplay);
        startTime = Screen('Flip', window1); % Start of trial
        Onset_object_1 = startTime-ExpStart; %Onset
        press_trigger(trigger_object_1,triggers_on);

       
        
            while GetSecs - startTime < objectTimeout
            [keyIsDown,secs,keyCode] = KbCheck;

            % ESC key quits the experiment
            if keyCode(KbName('Q')) == 1
                close all
                sca
                return;
            end
 
            respTime = GetSecs;
            pressedKeys = find(keyCode);

            % Check for response keys
            if ~isempty(pressedKeys)
                for i = 1:length(responseKeys)
                    if KbName(responseKeys{i}) == pressedKeys(1)
                        
                        break

                    end
                end
            end

            end  
   % Empty screen between object offset and next fix cross        
   % Screen priority
   
        Priority(MaxPriority(window1));
        Priority(2);
        Screen(window1, 'FillRect', backgroundColor);
        Screen('Flip', window1 )
        
        while GetSecs - startTime < postobjectTimeout1

            % ESC key quits the experiment
            if keyCode(KbName('Q')) == 1
                 close all
                sca
                return;
            end

            [keyIsDown,secs,keyCode] = KbCheck;

            respTime = GetSecs;
            pressedKeys = find(keyCode);

            % Check for response keys
            if ~isempty(pressedKeys)
                for i = 1:length(responseKeys)
                    if KbName(responseKeys{i}) == pressedKeys(1)
                        resp_catch = responseKeys{i};
                        rt_catch = respTime - startTime;
                        OnsetResp = GetSecs - ExpStart;
                        break

                    end
                end
            end


        end

%%

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% Subfunctions
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

% Draw a fixation cross (overlapping horizontal and vertical bar)
function drawCross(window,W,H,barColor)

if nargin==3
    barColor = [0 0 0];
end

barLength = 16; % in pixels
barWidth = 2; % in pixels
%0.5; % number from 0 (black) to 1 (white)
Screen('FillRect', window, barColor,[ (W-barLength)/2 (H-barWidth)/2 (W+barLength)/2 (H+barWidth)/2]);
Screen('FillRect', window, barColor,[ (W-barWidth)/2 (H-barLength)/2 (W+barWidth)/2 (H+barLength)/2]);

end