I’m trying to code a visual experiment relying on frame numbers.
It is a SSVEP experiment and presenting 2 stimuli at the same time.
They are changing based on certain frequencies.
It seems that I am “missing” some frame.
My trial are 60 seconds at 60Hz so I’m expecting that the last frame of my trial would be 3600 but it is usually somewhere around 3550. From different tests, I have the impression that it is because of the size of the stimuli, even though they are quite small, they need to be load several times during the trial (4 stimuli during one trial)
I was wondering if there is a way to preload stimuli at the beginning of the trial and just called them when they are needed.
I’m using the Builder and PsychoPy v2020.1.3