When you buy through links on our articles, Future and its syndication partners may earn a commission. Illusions like these mess with the brain's visual processing system, making viewers see things ...

So, almost the Sixth Swamp Deer has hidden somewhere in this forest optical illusion. Your Challenge is to spot the Sixth ...

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How optical illusions work has been long-debated among scientists and philosophers, who wonder whether these illusions stem from neural processing in the eye or involve higher-level cognitive ...

An 'unsettling' optical illusion shows two squares which appear to be completely different shades of gray, but are actually ...

The human mind is one of the most magnificent creations ever made. It performs magical feats and is a complex "machine" that scientists and psychologists are constantly trying to figure out. When it ...

The optical illusion appears to show two grey squares with different shades, but they are actually exactly the same colour.

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 ...

Optical illusions are a treat for visually genius minds. These visual illusions are excellent at assessing and examining the workings of the human brain. Researchers around the world incorporate ...

We sent a writer to the mind-bending museum’s Santa Monica opening for a sneak peek of holograms, gravity-defying rooms, 3D ...