The Expanding Hole illusion has been around for a while and never fails to mesmerise. In a study, researchers showed this illusion to 50 participants. For a whopping 86% of them, the black "hole ...

Our brain and eyes can play tricks on us—not least when it comes to the expanding hole illusion. A new computational model ...

Sugihara has taken a mathematical approach to understanding illusional depth. Unraveling the mathematical side to illusion, Sugihara believes, would potentially decrease the hazards of optical ...

A captivating optical illusion tests your observation skills. Initially, the image shows just one man on a secluded beach, ...

Optical illusions ... play with depth, colour, light, and patterns, making you question what you see. Whether it’s the famous "Rubin’s Vase," the "Checker Shadow Illusion," or hidden-object ...

Test your eyesight with a challenging optical illusion that requires you to spot the real owl among soft toys in just 7 seconds. Focus on subtle differences in texture and eye color to ...