Our brains create false perceptions through these illusions, which make us see things that do not exist while they distort ...

Featuring a blurry image of abstract yellows, oranges, purples and blues, this optical illusion appears pretty plain. It's ...

This optical illusion shows a noisy, grainy pattern that looks like pure visual chaos at first glance. Hidden in this picture ...

Optical illusions like the one at the top of the page may not actually be bright, but our brains — and now it seems our eyes — think they are. This radial sunburst illusion is known as the Asahi ...

Optical illusions are not merely tricks or viral brain teasers, they reveal the curious disconnect between what we see and what our brain interprets. A flat drawing might come across as ...

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 ...

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 ...

Think you have the eyes of a true problem solver? This visual puzzle asks you to find the hidden odd number among similar digits. It looks simple at first glance, but only careful thinkers can crack ...

Optical illusions occur naturally in different habitats and conditions across the world. Cloud formations can sometimes make it seem like there's an ocean or a UFO in the sky. Whether it is salt flats ...

An optical illusion that plays with our perception of brightness also seems to work on rats, suggesting that the connection between perception and pupil size evolved early on in mammals. The Asahi ...