We are used to the idea that perception can be ambiguous — there are visual illusions such as the famous Necker cube that can be perceived in two completely different ways. We accept that both ...

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 ...

Sometimes, optical illusions are nothing more than interesting, with no real insight into you as a person. These visual perceptions can transform human faces into aliens, confuse you by simply turning ...