A popular optical illusion has people confused and wondering what it means to their brains.
Also known as the Silhouette Illusion, the Spinning Dancer is an animated optical illusion.
It was originally released in 2003 as a GIF animation of a dancer doing pirouettes.
Developed by Japanese web designer Nobuyuki Kayahara, the optical illusion uses movement to stimulate your brain.
Some observers see the figure rotate clockwise, while others see it move counter-clockwise.
And some people might see the character turning in one direction and then suddenly walking in the opposite direction.
What does this mean for my brain?
For years, articles have referred to the optical illusion as a test to see if you’re “right-brained” or “left-brained.”
Basically, when you see the dancer spinning clockwise, people are saying you’re using more of your right brain.
And if you see it moving counter-clockwise, you’re more of a left-brained person.
However, that theory has been debunked by experts — or as scientist Arthur Shapiro told VICE, “That’s just gibberish.”
Instead, the illusion is a reversible two-dimensional image that can tell us more about how vision works.
How does this illusion work?
Reversible or ambiguous optical illusions work because they lack depth cues – confusing your brain.
And when your brain is confused, it goes through a process called “unconscious reasoning.”
This process helps your brain find meaning — or conclusions — without enough evidence. In other words, it’s a guess.
As a result, your brain can sometimes perceive that the dancer is standing on her left leg and turning to the right.
And sometimes the woman can perceive it as standing on her right leg and turning to the left.
Most people, if they look closely enough at the picture, will see it spinning both ways.
“Silhouettes are extremely ambiguous,” Shapiro said.
“If you added dates to the spinning girl, like a pair of brightly colored Lululemon pants, your brain would break the illusion faster.”
https://www.the-sun.com/tech/5624094/bizarre-spinning-ballerina-optical-illusion-brain/ The dancer’s bizarre spinning optical illusion reveals the “hidden truth” about your brain depending on which direction you’re facing