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 ...

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 ...

Studies show that your brain doesn’t perceive the world exactly as it is. Instead, it “fills in gaps in perception.” The first layer of your brain’s primary visual cortex helps to decide what reality ...