For some reason, we often think of computers as infallible -- subjective, logical, rational, and nearly always right. There is something about a computer's lack of emotion and intelligence that makes ...

Optical illusions are more than just visual tricks. These visual puzzles test your cognitive ability, attention to detail, and problem-solving skills. Your brain processes visual information at ...

Optical illusions are older than you think. The first optical illusions date back to 20,000 BC and took the form of cave sculptings. Nowadays they are found all over the place – on screens, in books ...

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.

How optical illusions work has been long-debated among scientists and philosophers, who wonder whether these illusions stem from neural processing in the eye or involve higher-level cognitive ...

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 ...

Do you have an eye for illusions? If you can spot the animal lurking among the monochromatic chevron pattern in this mind-boggling puzzle, you’ll be among an elite group of keen-eyed viewers. Those ...