There are countless types of optical illusions, from the cognitive to the physiological, testing our minds in ways that ...

Think you have the eyes of a detective? This fun optical illusion test hides one odd inverted number among many similar ...

Think you’re sharper than most? This circle-based optical illusion is proving everyone wrong. A number is cleverly blended ...

The way your brain interprets this illusion may reveal whether you think outside the box or stick to the safe and familiar.

UK-based contact lens retailer Lenstore is bringing new meaning to the phrase optical illusion with an image that asks a seemingly simple question of people who can perceive hues without any ...

New research has analyzed human reactions to several optical illusions in which a black mass appears to expand before someone’s very eyes, the New York Times reported. These kinds of static images ...

Every time Marianne publishes a story, you’ll get an alert straight to your inbox! Enter your email By clicking “Sign up”, you agree to receive emails from ...

Why people perceive motion in some static images has mystified not only those who view these optical illusions but neuroscientists who have tried to explain the phenomenon. Now Yale neuroscientists ...

A picture appearing to show a cow with no visible body grazing on a patch of grass is proving to be the source of much a-moo-sement online. The optical illusion was shared on Reddit by a user posting ...