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.

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 ...

From early childhood, we’ve been taught to recognize the colors of the rainbow—red, orange, yellow, green, blue, indigo, and violet—using the iconic acronym ROYGBIV. We see them in nature, on color ...

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 ...

Optical illusions play tricks on your brain and can make you see things that aren't really there, from static images swirling around the page to images that stay with you even after you look away.

A classic optical illusion challenges viewers to find a hidden face amidst characters with umbrellas, testing observation skills. Experts say such puzzles boost brain function, enhancing ...

Optical illusions play on the brain's biases, tricking it into perceiving images differently than how they really are. And now, in mice, scientists have harnessed an optical illusion to reveal hidden ...

An optical illusion is a visual phenomenon in which our perception of an image differs from objective reality. This image is seen as a visual Illusion of a caricature-style optical illusion face ...

What is an Optical Illusion? An optical illusion is a visual phenomenon where the brain misinterprets what the eyes see. Instead of perceiving an image exactly as it is, the brain fills in gaps, ...