I’m working in a visual stimulus that consists in two images (the contrast of checkerboard, -.jpg), but i need to present each image at 6 Hz, and I could do it, because the minimum time that superlab let me configure for each image is 500-600 ms, and i need 166 ms as time limit. What can i do? It is impossible?

I tried with End in the trial variable, time limit and time variable (i rode some threads that people rode before) but i didn’t have the solution.



Hi Eliana,

How often do you need to present the checkerboard for? The minimum duration time is 1 refresh cycle, which translates to about 10 to 16.66 milliseconds depending on your monitor + video card.

Can you post the two images?