I need to present feedback (simply “correct” or “incorrect”) after a variable delay following behavioral response from the subject. I have created two events for the feedback (an ISI and a “Text”). If I set a fixed time (e.g., 1000 ms) for this ISI, everything works properly but, when I try to set it as a variable the program seems to ignore the ISI and presents the text immediately after the behavioral response.
I would be very grateful if you can give me a way to solve this problem as the variable ISI before the feedback is fundamental for this experiment.
Jose L. Pardo-Vazquez