An optical illusion apparently determines whether you're positive or prefer keep your distance – so what will you see when ...

The optical illusion test for the day will apparently reveal certain hidden details about your personality. Try it out to get ...

A brain-teasing optical illusion is challenging internet users to find two sunscreen bottles marked SPF 50 among a sea of ...

The Best Illusion of the Year contest offers researchers, and participants, an opportunity to explore the gaps and limits of ...

In the visual illusion, we get to witness a sea of the letter ‘o’. All that people are required to do is find a ‘0’ (zero) ...

The illusion is based on the Pallas's cat's natural camouflage abilities. This trait is key to its survival in the wild. It’s ...

This visually confusing challenge hides the number 52 among many 57s—and only those with superior focus and perception can find it. If your IQ is 110 or above, this puzzle should be a breeze… or will ...

30 Optical Illusions That Will Make Your Brain Hurt. Vectordivider/Getty Images. By Bianca Alvarez and Marissa Laliberte. Updated on Aug. 24, ...

American psychologist Joseph Jastrow made this illusion in 1899 – to make a point about how the brain perceives what is in ...

IN your issue for September 27 a description of some optical illusions furnished by revolving fans recalled to my mind a very powerful illusion which I noticed some time ago, but for which I have ...