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 while the other flashes between black and ...

The Spinning Dancer is a classic example of a bistable perception illusion. These illusions present two equally valid ...

One mystifying illusion shows two rotating rings made up of six ovals. One is all black, while the other alternates between black and white against a gray background.

A new optical illusion is going viral. It plays tricks on how we see colours. The illusion uses green, yellow, and black.

American psychologist Joseph Jastrow made this illusion in 1899 – to make a point about how the brain perceives what is in ...

One such clever illustration is the optical illusion with a viral black and white photo that was hugely circulated on social media. What you see first reveals if you are left-brained or right-brained.

In February 2015, the viral illusion had viewers in a hot debate over whether the dress was black and blue or white and gold. Here's the science.