I am creating an experiment with the following structure:
- cue for 500 ms
- image of face for 150 ms
- participant must categorize face as either thatcherized or normal by pressing a key
- feedback to tell the participant if they were correct or not
The problem I am having is that I cannot figure out how to have the face event end after 150 ms, but also have a correct response and feedback.
In order to limit the face to 150 ms, I will need an event that is simply blank screen for the time between 150 ms and when the participant responds. But whether their response is correct or not is based on the face presented in event 2, not event 3. So I need a way to define a correct response based on an event other than the one in which the participant responds.
I am using a stimulus list to present the faces. Anyone know how to do what I’m asking?
The experiment is attached. The version I am attaching is in superlab 4, though I just updated to 5, so if there are new features to help me with my problem, I can use 5 instead.
thatcher.sl4 (74.2 KB)