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 ...

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.

The New Optical illusion image has 14 columns and nine rows, and the challenge is to find out the lone number '7103.' ...

The owl camouflaged itself so well that many players overlooked its presence. However, players who remained calm were able to spot the bird in the left tree. The owl is hidden in the left tree, ...

A grayscale ballerina who appears to be moving. A human who can fit in a doll box. A black-and-white prism that appears to change shape when... Optical illusions are a brain feature, not a bug. Here's ...

A new optical illusion is confusing thousands of people online and has left many among them scratching their heads. The tricky brain teaser shows a bunch of cats in white, orange and grey, with one ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Andriy Onufriyenko via Getty Images Though optical illusions come in all shapes and ...

If you’re into visual puzzles and love testing your brainpower, here’s one that’ll definitely make you do a double take. The image above is a classic optical illusion challenge—at first glance, it ...

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 ...

Studies show that your brain doesn’t perceive the world exactly as it is. Instead, it “fills in gaps in perception.” The first layer of your brain’s primary visual cortex helps to decide what reality ...

Artists and scientists have been creating optical illusions for centuries. Here are 35 mind-bending examples that prove you can't always trust what your eyes are telling you. Optical illusions play ...