When you buy through links on our articles, Future and its syndication partners may earn a commission. Illusions like these mess with the brain's visual processing system, making viewers see things ...

Do you think you have sharp eyes? Try this optical illusion IQ test and spot the hidden needle without getting distracted by the tortoise-and-rabbit race. Only 25 seconds to check how strong your ...

Featuring a blurry image of abstract yellows, oranges, purples and blues, this optical illusion appears pretty plain. It's ...

Susana Martinez-Conde is director of the Laboratory of Visual Neuroscience at the Barrow Neurological Institute in Phoenix, Arizona. She studies visual illusions to gain a better understanding of how ...

Take a look at the picture given below, the image is of a room full of people dancing and celebrating. However, some of them ...

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 ...

Medical imaging experts are adept at solving common optical illusions, according to new research. The research is the first to show that people can be trained to do better at solving visual illusions, ...

Hidden letter and number optical illusions are fun because they look easy at first. But once the timer starts, the brain ...

The study of visual illusions in animals provides a compelling window into both the evolutionary continuity and diversity of perceptual processes. Research indicates that many species, from domestic ...

Photos of a stretch of Interstate 80 in Wyoming often go viral because the highway appears to rise straight into the sky.

In this Ebbinghaus illusion of relative size perception, the orange circle on the left looks bigger than the one on the right - but it is actually 10 per cent smaller. In a new study, medical imaging ...