The Best Illusion Ever Created

Go to http://cvcl.mit.edu/gallery.htm and look at the picture under Dr. Angry and Mr. Smiles. If you watch the above images from your seat in front of the computer, Dr. Angry is on the left, and Mr. Smiles on the right. Get up from your seat, and move back about 12 feet. What do you see now? Yep! Mr Smiles and Dr Angry switched places.

This illusion was invented by Philippe G. Schyns and Aude Oliva of the University of Glasgow. It is featured on this web page: http://cvcl.mit.edu/gallery.htm , listed under ‘Dr Angry and Mr Smiles’. It is taken from Schyns and Oliva’s paper, “Dr Angry and Mr Smiles: when categorization flexibly modifies the perception of faces in rapid visual presentations, Nov 1998″.