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 ...

View Full Profile. Optical illusions mess with our eyes — and brains — in the weirdest ways. Looking at one usually makes us ...

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

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 ...

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

This visual illusion will reveal how sharp your brain is. This is your chance to prove you are highly observant with ...

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

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

Here is an optical illusion shared on Instagram by Thorsten Schmitt that challenges you to spot the hidden words in a tricky ...