I am trying to set up an experiment that will be used to collect data with fMRI. I have about 20 movies (1-3 seconds long). After each movie plays, I want to record the subject's response and response time (either a 1 or a 4 on keyboard). I also want to wait a certain interval *despite receiving a response* before the next movie plays. There are five different interval times, each matched to a specific movie. I can figure out how to wait before displaying the next movie, OR how to record the response & RT, but I can't figure out how to accomplish both.