Optical illusions are your best friends when it comes to boosting your cognitive functions like visual perception, pattern recognition, and focus. These visual puzzles often challenge you to find the ...

Optical illusions to find the hidden objects and numbers are effective at revealing your brainpower and visual IQ. How sharp ...

If you’re into visual puzzles and love testing your brainpower, here’s one that’ll definitely make you do a double take. The image above is a classic optical illusion challenge—at first glance, it ...

A grayscale ballerina who appears to be moving. A human who can fit in a doll box. A black-and-white prism which appear to change shape when viewed from three different directions. Those are the top ...

Allen Institute researcher Jerome Lecoq points to one of the diagrams that was used in a study focusing on how the brain interprets optical illusions. (Allen Institute Photo / Erik Dinnel) Our brains ...

An Optical Illusion is a type of puzzle that requires cognitive skills, a high IQ, and keen visual perception. As per Claus-Christian Carbon, Professor at the University of Bamberg, Germany, these ...

An illusion is when we see and perceive an object that doesn't match the sensory input that reaches our eyes. In the case of the image below, the sensory input is four Pac Man–like black figures. But ...