Optical illusion tests are beneficial for brain function as they challenge our visual perception and enhance cognitive skills ...

Take the Color Flash brooch, an exuberant cocktail of rubies, yellow, blue, and green sapphires, black spinels, amethysts, ...

A head-scratching optical illusion challenges the perception of color and how the brain plays tricks on us. In an image ...

We selected a few optical illusions to test your perception of reality. Produced by Robert Libetti Follow BI Video: On Facebook More from Science Things are not always what they seem. While most ...

Whether you found them all or needed a little extra time, engaging in optical illusions is a fun way to give your brain a workout.

Optical illusions, like this one, are always captivating ... Look for slight variations in shape, spacing, or color.