Optical illusions are not just a fun game. This optical illusion will test your brain's ability to spot hidden patterns. How good are you at noticing subtle anomalies?

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 ...

Optical illusions challenge: Think you’ve got sharp eyes and a quick brain? Try this optical illusion IQ test that’s leaving even the brightest minds puzzled. This brain teaser challenges you to find ...

A new viral optical illusion challenges viewers to find a hidden mouse in a cluttered kitchen scene within 25 seconds. Experts highlight that such puzzles enhance cognitive abilities, analytical ...

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. When you purchase through links on our site, we may ...

This optical illusion puzzle challenges you to find a pencil hidden among books. Do you think you have what it takes to solve ...

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 ...

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 ...