An optical illusion featuring an old man and a hand reveals emotional states. Seeing the old man first suggests carrying ...

This short video uses a moving optical illusion to create a strange aftereffect. Viewers are told to stare at a red dot until ...

The mind is a powerful thing and it can make you see things that aren’t really there. An artist has people scratching their heads as she created a mind-bending illusion. The artist, who simply goes by ...

This optical illusion by artist Oleg Shupliak features a sketch of a woman, but there are actually four women hidden in plain ...

An optical illusion by Ukrainian artist Oleg Shupliak has left people scratching their heads as they desperately try to spot ...

Like humans, octopuses can fall for the rubber hand illusion and believe that a fake arm is theirs. This suggests they have a sense of their own body, just as we do. The rubber hand illusion is a ...

A couple of years ago an optical illusion came along and almost broke our site. Over three million people read an article about the most dizzying illusion ever to grace our screens – the rotating ...

But you might be surprised to learn that this is an optical illusion that long predates the smartphone. Known as Pepper's ...