Learn more about an illusion which will distort your perception of continuity--specifically, your perception of a straight line.

Internet Psychology Lab

University of Illinois

Another illusion of our visual system.

Internet Psychology Lab

University of Illinois

The Bad GuysTM have you trapped in a matrix of alternate universes! But by careful observation, aided by your ability to detect motion parallax, you

Internet Psychology Lab

University of Illinois

Internet Psychology Lab

University of Illinois

Internet Psychology Lab

University of Illinois

How tall is wide? A little shorter than it should be. Look for yourself.

Internet Psychology Lab

University of Illinois

Measured your reaction time to the presentation of stimuli without having to make any kind of discrimination or choice

Internet Psychology Lab

University of Illinois

Bem Allen

Western Illinois University

Bipin Indurkhia and Dietmar Janetzko

University of Freiburg

Samuel Spitzer

Oberlin College