THIS optical illusion is sure to get your head spinning.
It shows two rotating rings made up of six egg-shaped dots. The rings appear to be moving at different speeds.
However, they both rotate at the same speed.
The illusion was posted on Twitter by a Japanese psychologist and artist on October 8th Akiyoshi Kitaoka.
They wrote: “The ring on the right appears to be spinning faster than the ring on the left, although the speed is the same.”
The eye’s trick results in the dots on the right ring blinking as they rotate.
If you look closely, they change from black to white in a sweeping right-to-left motion.
This creates the illusion of speed or acceleration, making the ring appear to be rotating faster than its counterpart on the left.
It only works because the non-flashing ring is visible next to it.
One way to “hack” the illusion is to stare at both rings at the same time, then cover the left one with your hand.
You will notice that the right ring will then appear to slow down and rotate more slowly than before.
Twitter users responded enthusiastically to Kitaoka’s post.
One wrote: “You tweet great stuff.”
Akiyoshi Kitaoka is Professor of Experimental Psychology and Expert in Illusions at Ritsumeikan University in Japan.
He regularly shares optical illusions he’s found or created with his 50,000 Twitter followers.
Illusions are often just a bit of fun, but they also have real value for scientists.
The brain puzzles help researchers shed light on the inner workings of the mind and how it reacts to its environment.
dr Gustav Kuhn, a psychologist and human cognition expert at Goldsmiths University in London, told the Sun earlier this year that illusions are important to our understanding of the brain.
“We usually take perception for granted and rarely think about the hard work that underpins everyday tasks, like seeing a cup of coffee in front of you,” he said.
“Visual illusions highlight perceptual errors and provide important insights into the hidden neural processes that allow us to see the world around us.”
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https://www.thesun.ie/tech/9554233/illusion-brain-hack-fool-your-eyes/ Stunning illusion uses “brain hack” to completely fool your eyes