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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 ...

Optical illusions are a fun and challenging way that tricks our visual illusion, and this motion optical illusion is challenging for millions of people. In this hypnotic spiral pattern, a very famous ...

It’ll spin your head right round, right round. This head-spinning optical illusion will have you second guessing your own sanity. It shows two rotating rings made up of six ovals. One is all black ...

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 ...

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American Worldwide voting for the 13 th Best Illusion ...

Optical illusions are older than you think. The first optical illusions date back to 20,000 BC and took the form of cave sculptings. Nowadays they are found all over the place – on screens, in books ...