If this template helps then use it. If not then just delete and start from scratch.
OS (MacOS Monterey 12.1):
PsychoPy version (v2022.2.5):
What are you trying to achieve?: I am creating a simple fMRI experiment where participants will rate their emotional response following the presentation of an image stimulus. The flow of the loop: fixation cross–>stimulus–>rating (then it repeats).
I currently made a fixation routine from “stimuli–>polygon–>cross,” but can only program a fixed time interval
The fixation cross needs to be presented for either 1 or 3 seconds (a randomly selected binary choice). I am unsure how to have PsychoPy make this randomized choice.
Thanks so much for any guidance anyone can provide!