This type of illusion is called the The Troxler Effect, and was developed by physician Ignaz Paul Vital Troxler in 1804. It reveals that everything exists in reality, although our perception makes ...

Look closely at this picture. At first glance, you can see a big tortoise in the centre of the image. But look closer, and ...

So, if you think that your IQ is higher than 100% of people, then by using your sharp Hawk-Eye Vision and observation skills ...

Test your observation skills with this nature-themed optical illusion challenge. Spot all hidden tortoises camouflaged in ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Martin Doherty / Radoslaw Wincza We love a good optical illusion here at Creative Bloq.

"WWE SmackDown" in Hershey saw Cody Rhodes and general manager Nick Aldis butting heads. A cut in the first round didn't stop ...

The study of visual illusions in animals provides a compelling window into both the evolutionary continuity and diversity of perceptual processes. Research indicates that many species, from domestic ...

Visual perception of motion and its accompanying illusions has long fascinated neuroscientists and psychologists alike. This research field examines how the brain compensates for inherent neural ...

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 ...

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, art that moves with you, and a room that seems to go on forever.

An example of the glare illusion used in the experiment. A previous study has reported that the central region surrounded by eight circles is perceived to be brighter in the left image (with a ...