[edited from support email]

Is it possible to collect response data and maintain stimuli on the screen for a predetermined length of time? I am displaying pictures for either 1 or 3 seconds (and it is necessary that the pictures actually be viewed for that set amount of time), but I would like to obtain a response (yes/no) and a reaction time while the images are being displayed. It's critical that the pictures to be viewed for exactly 1 second or exactly 3 seconds. Is this possible?