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.

This optical illusion reveals how a person’s brain can change the color of the objects that they see. Experimental psychologist and artist, Akiyoshi Kitaoka, from Kyoto, Japan, posted a clip of the ...

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 ...

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 ...

Optical illusions are older than you think. The first optical illusions date back to 20,000 BC and were seen in caves. Nowadays they are found all over the place – on screens, in books and even in ...

For centuries, optical illusions have used our visual shortcuts and brain inklings against us, turning everyday objects into false 3D images, strange floating ships, and seriously confusing arguments.