From shifting colours to phantom rays, these five challenges reveal how easily your mind can be fooled by light, contrast, ...

A viral brain teaser is making the rounds on social media, challenging viewers to spot three odd numbers hidden among a wall ...

Here, we see a pic with the word pens written all over it. The words are really striking since it they written in white over a black background. Howev ...

The Best Illusion of the Year contest offers researchers, and participants, an opportunity to explore the gaps and limits of human perception.

In this black and white sketch, we see a leopard comfortably perched upon a tree enjoying his afternoon siesta. Oblivious to him, a fish is just aroun ...

From confusing shadows to shape-shifting images, illusions play tricks on our brains, forcing us to think beyond the obvious. Can you count all the squares in this viral optical illusion?

London-based illusion attraction Twist Museum has shared an optical illusion set to baffle readers, as it tricks the mind into seeing the same black and white photo in colour.

Your brain is being tricked right now, this optical illusion is playing tricks on your perception – take a closer look and see if you can spot the truth!

A study of mice starts to unravel how the brain gets tricked by this kind of optical illusion, and it gives clues about how visual perception works.

Black and white optical illusion of two girls sat down is going viral, and apparently people who don't have 20/20 vision see a creepy old lady in the image.

Many will say that the feature image of this optical illusion story looks very much like a background of 8-bit arcade game that people played in the 1980s and 1990s. They aren't wrong. The squares and ...