Most optical illusions last for a few fleeting moments when you're staring at the book, screen, or whatever medium the illusion is presented in, but the normal rules don’t apply to the McCollough ...

A head-scratching optical illusion challenges the perception of color and how the brain plays tricks on us. In an image created by the UK contact lens vendor Lenstore, a series of lilac letters ...

In the past few years, the internet has given us The Dress, a photo of a mysterious missing leg, and this disorienting floor design. If you're still hungry for more, INSIDER rounded up a mix of ...

This short uses a color wheel, a white dot, and a countdown to create a strong visual afterimage effect. The viewer is told ...

So I've read in more than a few places that color doesn't exist outside our heads, it's just wavelengths of light. That our brains are the things that make color, same with sound (which is just ...

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Perception researchers have long known about the structural and functional features that differentiate our central vision from our peripheral vision. The central (or foveal) region of our retinas are ...

Optical illusions are great fun, and they fool virtually everyone. But have you ever wondered if you could train yourself to unsee these illusions? Our latest research suggests that you can. Optical ...

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. Optical illusions play on the brain's biases, ...

The Parthenon is a gem of ancient Greek architecture for its perfect appearance, but its perfection results from optical illusions.