How to shrink Berlusconi’s head

To perceive the effect, fix your eyes on the cross in the center of the video. Once the motion stops and the head pictures are flashed on-screen, the image on the left should appear smaller than the one on the right. If you pause the video, you’ll notice that in fact both heads are the same size.

Created by Tim Meese and colleagues at Aston University in Birmingham, UK, the illusion was presented last week at the European Conference on Visual Perception in Alghero, Italy.

(Source: newscientist.com)