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 ...

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 ...

This fruity optical illusion tells viewers if their eyes are in denial. Japanese psychologist Akiyoshi Kitaoka went viral on Twitter in 2018 after posting a photo featuring a medley of strawberries ...

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 ...

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Your brain is lying to you right now. Not maliciously, and not because something’s wrong with it. It’s doing exactly what evolution designed it to do, making split-second decisions about the world ...

I had a pair of red sunglasses back when colored lenses were cool (or at least back when I thought they were). But I couldn’t wear them when driving because they make traffic lights look broken. The ...

Optical illusions are tricky little things. Often they can leave us scratching our heads, trying to figure out how the illusion is tricking our eyes and our brain. One type of illusion, known as a ...

At first glance, this image may appear to be just a repetitive pattern of the word “Colour” written over and over again. The consistent font, uniform spacing, and monochrome background all work ...

Everyone loves an optical illusion — even if they leave us completely stumped — and they're all around us in the natural world. From an underwater waterfall in the Indian Ocean to a surrealist scene ...