This trippy image appears to be a pigment enigma. Puzzle lovers are straining their brains over this optical illusion, which reportedly fools the viewer into thinking that they have gone colorblind.

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 ...

Well, it looks like we're never, ever escaping the tyranny of The Dress — but it's OK, because optical illusions are cool. Not only that, but they can teach us a ton about ourselves, too. Case in ...

It’s no secret that putting various colors together makes them look different. Put off-white next to black, and it looks completely bright. But did you know that, with the Munker Illusion, you can ...

Tom has a Master's degree in Journalism. His editorial work covers anything from archaeology and the environment to technology and culture. Tom has a Master's degree in Journalism. His editorial work ...

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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 ...

What a pretty pastel image. You’re seeing circles of several different colors, right? Actually, your eyes and your brain are deceiving you. All the dots are the same color, but are perceived by your ...