Schulz-Hildebrandt, a biomedical optics engineer at Harvard Medical School, ran with his observation and developed an ...

A new optical illusion excellently illustrates just how finicky our eyes are when it comes to perceiving colors.

How many purple dots do you see in the image above? Are they all the same hue? This new optical illusion, developed by ...

Science has a simple and incredible trick that will help you lose weight. The idea, it seems, is to make portions appear bigger because this leads people to serve and eat less. Although many such ...

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 ...

Via my evil twin Richard Wiseman comes one of the best color optical illusions I have ever seen. The original was apparently posted on Buzzhunt Akiyoshi Kitaoka’s incredible optical illusion website: ...

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 ...

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 ...

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 ...

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 ...