Bouncing Brains

Thorsten Hansen, Kai Hamburger, & Karl R. Gegenfurtner

University of Giessen, Germany
This movie requires Flash Player 9

Please relax and look at the colorful brains: aren’t they rotating and bouncing?! They are, but only in your head.

What’s going on? Some regions in the brains are darker, some lighter than the background. The perceived location of the separation between light and dark regions changes as the background is modulated, causing each brain to jiggle and bounce. In some regions these illusory motions of neighboring brains are coherent and are grouped together to give rise to an even stronger illusion.

Read more about the illusion and possible explanations

Bouncing Brains, 7.5 out of 10 based on 116 ratings Facebooktwittermail
adminBouncing Brains