A new optical illusion, the 'expanding hole,' tricks the brain and reflexes, causing pupil dilation as if entering a dark space. A study reveals that 86% of people perceive the illusion, with black ...

An optical illusion is a fascinating visual trick that deceives the brain into seeing something different from reality. These ...

A tricky optical illusion featuring a camouflaged snake sparked a challenge online, with users struggling to locate the ...

Most people failed to find the cube in this intricate arrangement of the candies. This optical illusion is not an easy feat.

Test your observation skills with this tricky optical illusion brain teaser. Find the hidden letter 'N' among the 'H' ...

Found it difficult? The majority of people can only spot two animals. If you were able to find all four, congratulations, ...

Challenge your focus with this viral optical illusion. Spot 'dool' among 'cool' in 7 seconds and test your attention to detail.

Study finds some experts can outsmart optical illusions 02:09. New York — At the Museum of Illusions in New York City, around every corner is a wonder for the eyes. There's a vase that's a face ...

Curious images known as optical illusions prove seeing isn't always believing. Oct. 13, 2009— -- Look at an optical illusion and you may think you're seeing things -- such as a curved line ...

Optical illusions may make you feel like a fool, but you could be able to train your brain to resist them. “It is very likely that people from the general population have the capacity to be ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Andriy Onufriyenko via Getty Images Though optical illusions come in all shapes and ...

Optical illusions, such as the Necker Cube and Rubin's Vase, trick the brain into seeing one interpretation first and then another, as the image is studied.The human brain effectively switches ...