Maybe we watched too many horror movies as kids, or maybe it's just an evolutionary advantage to be wary of danger when it isn't necessarily there, but we can all remember that sudden feeling of ...

Optical illusions come in all forms, from simple tricks of the eye to complex geometric designs, but my personal favourites are the simple illusions that leave my brain well and truly frazzled. While ...

Psychologists have long been interested in how people interpret ambiguous, bistable images, such as the examples below. Bistable images. Top left: faces or a vase. Top right: rabbit or duck. Bottom ...

An optical illusion is a fascinating visual trick that deceives the brain into seeing something different from reality. These illusions occur when the information our eyes send to the brain is ...

In a new optical illusion, what you see in the picture supposedly reveals something about your gender. But much like other ambiguous images, this illusion plays on the way our brains love to fill in ...