Optical illusions thrive online because they play tricks on human perception. The brain often relies on familiar patterns and ...

How good is your mental speed at observing hidden details? Solve this optical illusion to find out! Only if you are visually ...

In today’s Optical Illusion series, we have a Cosmic Nebula drifting through deep space. It is just creating an illusion, in ...

Test your brain with this optical illusion to see if you are sharp enough to find the hidden numbers in the given time limit.

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 ...

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 ...

This mind-boggling optical illusion may baffle you, even after you learn that you didn’t see what you thought you did. Experimental psychologist Akiyoshi Kitaoka often amuses her Twitter followers by ...

Six years ago, when filmmaker Masaya Ishikawa was using Adobe Illustrator to craft digital materials for a video production, he started seeing strange shapes on his screen that shouldn't have been ...

Optical illusions with hidden images are amazing for testing your visual powers. These illusion images challenge your brain's ...

Optical illusions are tricky little things. Often they can leave us scratching our heads, trying to figure out how the illusion is tricking our eyes and our brain. One type of illusion, known as a ...

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 ...

Check out some of these optical illusions, below — and see how you perceive images placed before your eyes. Just how do optical illusions work? "From an evolutionary standpoint, optical illusion is ...