Black Screen

[vumrikar]

Thanks for the help. I have just two more questions:

1.) Can you have more than two keys available for a response? After my stimulus is shown, I want the subjects to be able to respond by entering anything of the arrow keys on the keyboard. However, if I enter in rt:200,205,209,201 in my input file, only the up and right arrow key work!

2.) How do I get rid of a random blank gray screen that's showing up in between my trials?

I am attaching a copy of my revised input file for your reference.

Thanks!