I actually have a follow up question. The randomization code works as intended, but I have one more small issue. Between the offset of the random fixation point and the onset of the image, I need a 300ms delay that is just a blank screen. I have an object that does this (a 300ms blank screen), but because each fixation has a random duration, I don’t know how to set the onset of the blank screen to correspond to the offset of each random fixation. Any help would be appreciated. Thank you.