how to present a blank screen after random numbers?

Hello

I will run an experiment, which I should present random numbers for the participant, then he will get a blank screen, then a number, and he will response if the number was in the list or not. so, could you tell me how can I present the blank screen for the participant after some random numbers, because the list is random, so when I tried, sometimes the blank screen came in the middle or first of the list !

Thank you

Answer 1

[Kim Folmer Andersen]

depending on if you use the figure or the command promt. if command promt, "clc" might be what you are looking for. if it's in a figure try clf, maybe with a drawnow() to ensure you force-update the figure.