In this optical illusion picture, the number 28 is hiding among 82’s. Are you one of the selected few with the sharpest ...

Challenge your brain with this viral motion optical illusion that tests binocular vision and observation skills.

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

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 ...

The study of visual illusions in animals provides a compelling window into both the evolutionary continuity and diversity of perceptual processes. Research indicates that many species, from domestic ...

Optical illusion challenges like this one are designed to test focus, speed, and attention to detail. They look simple at ...

This image contains a horse which you need to spot within 15 seconds of viewing time. The problem presents itself as a ...

Medical imaging experts are adept at solving common optical illusions, according to new research. The research is the first to show that people can be trained to do better at solving visual illusions, ...

Lightness perception, the visual system’s ability to maintain a stable representation of surface reflectance despite varying illumination, has long intrigued researchers. Central to this field is the ...

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 ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. In Head Trip, PopSci explores the relationship between our brains ...