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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While new optical illusions go viral all the time, here are some of the most famous illusions that have kept us scratching our heads for years.

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 ...

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 ...

From the cigar nestled in the brickwork to 'The Dress', many optical illusions have left viewers around the world baffled over the years. But the latest illusion is arguably one of the most bizarre ...

Here's a visual illusion that catches the brain in the act of making up color. Arrange a set of black spokes radiating from a ...

Research shows that a certain kind of visual illusion, neon color spreading, works on mice. The study is also the first to combine the use of two investigative techniques called electrophysiology and ...

This is a classic neon-color-spreading illusion and is not the same as the one used in these experiments. Chances are you can glance at this and initially see a light-blue circle in slight contrast to ...