MIT-led team creates touch-based illusion

Anyone who has seen an optical illusion can recall the quirky moment when you realize that the image being perceived is different from objective reality. Now, a team of scientists from MIT, Harvard and McGill has designed a new illusion involving the sense of touch, which is helping to glean new insights into perception and how different senses--such as touch and sight--work together.

Link:
http://web.mit.edu/newsoffice/2008/touch-0717.html