A new discovery has unraveled why we sometimes see colors that aren't there. The phenomenon of "color afterimages" is when ...

Optical illusions have fascinated scientists, psychologists, and artists for centuries because they reveal one simple truth ...

Stare at this trippy optical illusion for just half a minute, and you'll start to see things that aren't really there.

Visual illusions of motion are a major source of interest in the vision research community. Explaining how a still image can produce an illusory perception of motion is important for a more complete ...