About this page

Our systems have detected unusual traffic from your computer network. This page checks to see if it's really you sending the requests, and not a robot. Why did this happen?

IP address: 44.221.43.88
Time: 2024-03-29T02:34:49Z
URL: http://scholar.google.com/scholar_lookup?title=The+psychophysics+toolbox&year=1997&author=Brainard&journal=Spat+Vis&volume=10&issue=4&pages=433-436&doi=10.1163%2F156856897X00357&pmid=9176952