What is an Optical Illusion? An optical illusion is a visual phenomenon where the brain misinterprets what the eyes see.

First there was “the dress,” then there was the sneakers, now there’s a debate over the color blue. If you’ve ever argued with a friend over whether something is blue or green, you’re not alone. A new ...

A new study published in the Journal of Cognition provides evidence that what we know influences what we hear. Researchers found that when people listened to pairs of words and nonsense words spoken ...

A new test called "Is my blue your blue?" reveals how different -- or similar -- your color perceptions are compared to everyone else. First there was “the dress,” then there was the sneakers, now ...