There are three main types of optical illusion: literal, cognitive, and physiological. Literal illusions are the result of combining smaller images to create one larger image. These are often created ...

Political analyst Matthew Dowd has spoken out after he was fired from MSNBC due to his on-air comments relating to Charlie ...

An optical illusion of two people hugging on a beach has left the internet baffled - and it's all to do with how our brains ...

Learn how the brain handles certain optical illusions, causing us to perceive shapes that don't actually exist.

Using lasers, researchers triggered optical illusion signals in mouse brains, uncovering how the brain fills in missing details in vision.

In today’s optical illusion challenge, viewers have to spot the little bird hiding in the wall of leaves in 15 seconds.

There is a frog hidden in this pile of autumn leaves. This optical illusion is a real test of observation skills. If you are ...

Neuroscientists are zeroing in on how special kinds of brain cells help us see things that aren't actually there.

This optical illusion will reveal if you are the sharpest out there. If you take pride in your observation skills, sharp ...

A viral Reddit optical illusion shows a moth camouflaged on a tree trunk, leaving users debating its exact location in ...