Collecting responses with PsychToolbox

Question

Hailey Trier 2017-1-7

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/319435-collecting-responses-with-psychtoolbox

编辑： Matteo Lisi 2018-1-23

Hello, I am trying to collect keyboard responses with PsychToolbox using KbCheck, but when I run the code the screen freezes and refuses to close. This script is intended to close all screens ONLY after keyboard input 'y' or 'n' (yes/no). I also want to collect which key response was made and the response time. Here is the code I am using to collect responses:

Screen('DrawText', window, 'XXXXX') %stimulus is drawn
[VBL stimulusOnset] = Screen('Flip', window)
acceptedKeys = [KbName('y'), KbName('n')];
responded = 0;
while responded == 0
    [tmp,KeyTime,KeyCode] = KbCheck;
    if KeyCode(acceptedKeys)
        RT =  KeyTime - stimulusOnset
        strResponse = KeyCode
        responded = 1;
    end
    % time between iterations of KbCheck loop
    WaitSecs(0.001);
end
Screen('CloseAll');