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 ...

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

Photos of a stretch of Interstate 80 in Wyoming often go viral because the highway appears to rise straight into the sky.

This type of illusion is called the The Troxler Effect, and was developed by physician Ignaz Paul Vital Troxler in 1804. It reveals that everything exists in reality, although our perception makes ...

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

Researchers used lasers to record and stimulate the activity of neurons in mice in order to learn how the brain processes and interprets optical illusions. (Allen Institute) Jo Kavaliauskas once saw ...

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

Every illusion has a backstage crew. New research shows the brain’s own “puppet strings”—special neurons that quietly tug our perception—help us see edges and shapes that don’t actually exist. When ...