[visionegg] timing of button responses in visionegg

Hello visionegg experts,

I am starting an experiment programmed in Python in which I need to
precisely measure the time of a response made by the subject. We fear that
with the mouse button or keyboard button of our macintosh G4 powerbook,
timing variability will be too high. Has anyone struggled with this issue?
We have a Cedrus response pad but no idea how to integrate it with our
python program using the USB port. Any advice on that? We're also
considering using a joystick.

This should be an issue that many have dealt with when measuring RTs and
the like, so I hope someone out there knows the answer and that when it
comes it will be of use to the rest.

Thanks,
Alex White
School of Psychology, University of Sydney



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