Optical illusions challenge our perception, and this sunflower garden puzzle is no exception! A lone buzzing bee is cleverly ...

Test your vision with this mind-boggling optical illusion! Among a wave of 25s, a single 'S' is cleverly hidden—can you spot it in under 10 seconds? This tricky brain teaser is designed to challenge ...

THIS mind-bending optical illusion can reveal a lot of your personality traits. Give this cracking brainteaser a go, and ...

The peripheral drift illusion causes us to perceive motion in a still image. A new study shows that the mechanism of this illusion relies on changes in pupil size.

Medical imaging experts are adept at solving common optical illusions, according to new research. The research is the first to show that people can be trained to do better at solving visual illusions, ...

This optical illusion challenge encourages sharpening your observation skills by finding five differences in two images of ...

According to current theories of expertise, this shouldn’t happen. Becoming an expert in chess, for example, makes you better ...

Op Art, also known as optical art, is a type of art that features optical illusions ... it difficult for our eyes to rest on one area. The viewer's eyes constantly move over the images and ...

Thankfully technology has developed since the early days of the internet and CAPTCHAs are a little less frustrating, but one new version has caught my eye. May I present optical illusion CAPTCHAs.

From mind-twisting visual puzzles to images that seem to shift and move right before your eyes, people love the challenge that optical illusions offer. They not only test our perception but also ...

Are you a master of optical illusions? This incredibly tricky puzzle dares only the best to find the hidden hippo camouflaged ...