When I was in high school, my friend switched sodas on me one day. I thought I was taking a swig of Coca Cola, but he had replaced it with cream soda. I immediately spit it out, thinking it tasted ...

The Best Illusion of the Year contest offers researchers, and participants, an opportunity to explore the gaps and limits of human perception. By Katrina Miller Take a look at this video of a waiting ...

Have you ever looked at two circles of exactly the same size and sworn one was larger? If so, your eyes have been tricked by the Ebbinghaus illusion, a classic example of how context can shape what we ...

Medical imaging experts are adept at solving common optical illusions, according to research from four UK universities, including the University of East Anglia. The correct analysis of medical images ...

Optical illusions have long fascinated scientists, artists, and everyday viewers. These visual puzzles can make stationary objects appear to move, straight lines look bent, or colours seem to change ...

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Optical illusions are great fun, and they fool virtually everyone. But have you ever wondered if you could train yourself to unsee these illusions? Our latest research suggests that you can. Optical ...

A head-scratching optical illusion challenges the perception of color and how the brain plays tricks on us. In an image created by the UK contact lens vendor Lenstore, a series of lilac letters ...

Witness an incredible optical illusion designed to blur the very perception of reality. This mind-bending trick will challenge what your eyes see and what your brain believes. A fascinating ...