Finding hidden images in optical illusions is an effective mental exercise that challenges your cognitive functions while ...

This optical illusion will test your brain's ability to zone out while looking at repetitive patterns. Can you find the ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Illusions like these mess with the brain's visual processing system, making viewers see things ...

Illusion is derived from the Latin word illudere, which means to mock or trick. Therefore, the basic premise of an optical illusion is to deceive the human brain by tricking it. Optical illusions ...

Optical illusions challenge your brain to think outside the box, and this is a tricky one for you! Only those with quick thinking and a creative mind can spot the two hidden patients in just 9 seconds ...

A grayscale ballerina who appears to be moving. A human who can fit in a doll box. A black-and-white prism which appear to change shape when viewed from three different directions. Those are the top ...

The Best Illusion of the Year contest offers researchers, and participants, an opportunity to explore the gaps and limits of human perception. By Katrina Miller Take a look at this video of a waiting ...

Our eyes can frequently play tricks on us, but scientists have discovered that some artificial intelligence can fall for the same illusions. And it is changing what we know about our brains. When we ...

Optical illusions play tricks on your brain and can make you see things that aren't really there, from static images swirling around the page to images that stay with you even after you look away.