The human brain is wired to recognize patterns, but it often struggles with negative space and camouflage illusions. Optical illusions like this challenge your logical reasoning and spatial ...

An optical illusion brain teaser IQ test is a test that involves the perception of images that deceive both the eye and the brain. To make use of your crystal-clear gaze is to look attentively, to ...

Think you have sharp eyes? Find the hidden ring in this optical illusion in under 13 seconds. Most people take 25 seconds!

This brain teaser involves figuring out the equation which is a test of logic and creative thinking. By carefully examining ...

Allen Institute researcher Jerome Lecoq points to one of the diagrams that was used in a study focusing on how the brain interprets optical illusions. (Allen Institute Photo / Erik Dinnel) Our brains ...

Researchers used lasers to record and stimulate the activity of neurons in mice in order to learn how the brain processes and interprets optical illusions. (Allen Institute) Jo Kavaliauskas once saw ...