What colour are the dots in this image? A mind–boggling optical illusion has been developed by scientists to show how our perception of colour can be easily skewed. At first glance it may seem like a ...

An optical illusion has divided the internet, as people can't agree on the colour they are seeing. The black and blue dress (or was it white and golden?) once stumped netizens, and the latest illusion ...

Add Yahoo as a preferred source to see more of our stories on Google. Don't stare too long. Spoiler: It’s a trick question. They look kind of purple, but they’re all technically the same blue. But ...

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 ...