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optical illusions

Credit: Condé Nast (through Vogue Taiwan)

Prepare to get Thatcherized.

Adele has a face that is chiseled into the public's mind. She's been a global icon for two decades with a number of mega hit albums and songs. But this photo might be the most unforgettable of all. Perhaps you’ve seen the image in question previously (it seems to make the rounds every couple of years). But in case you missed it—it’s Adele’s face. Normal, just upside down.

Only it’s not normal. In fact, when you turn Adele’s face right side up, what you notice is that her eyes and mouth were actually right-side up THE ENTIRE TIME, even though the entire head was upside down. So when you turn the head right side up, the eyes and mouth are now UPSIDE-DOWN—and you can’t unsee it. Do you feel like you're Alice in Wonderland yet?

Just wait. Things get even more fascinating. Especially because this optical illusion is over 40 years in the making.

Below you’ll find the Adele photo in question. Go ahead. Take a look at it. Then turn the image upside down.


adele, thatcher effect, psychology Can't. Unsee.scontent-lax3-2.xx.fbcdn.net

Crazy right? And just a little terrifying?

As the Facebook post explains, this mind-boggling image highlights a phenomenon known as the Thatcher effect. Our brains, so much more used to recognizing faces that are right-side up, have difficulty detecting specific changes once a face is upside down.

margaret thatcher, colleage of thatcher photos, thatcher effect Image manipulation illustrating the Thatcher effect. Rob Bogaerts Image manipulation: Phonebox

Seeing that everything is more or less where it should be, our brains don’t notice anything out of the ordinary in Adele’s face until we turn her face back to a normal position.

The Thatcher effect got its name from British Prime Minister Margaret Thatcher, on whose photograph it was first demonstrated back in 1980 by Peter Thompson, Professor of Psychology at York University.

This demonstration was one of the first to explore just how facial recognition works, and certainly the first to suggest that humans (and monkeys, it turns out) process faces on a more holistic level, rather than by individual components like lips and eyes. There's even evidence that rhesus monkeys and chimpanzees experience the Thatcher effect, meaning it may have deep roots in the evolutionary biology of mammals.

Since its publication, there has been a wealth of research exploring how our brain takes in both subtle and striking facial configurations.


- YouTube www.youtube.com


Funny enough, it was once believed that this illusion only worked on the Prime Minister’s face. But as Adele has proven, anyone can be Thatcherized.

This article originally appeared two years ago.

Joy

Can you figure out what this doodle is?

Once you see it, you’ll never unsee it.

via Facebook

Do you see it?

Facebook user Savannah Root from Missouri stared at the photo above for hours before she finally figured out what it was.

Everyone that sees it either gets it right away or sits there stumped. The picture is so mystifying that after one week, it was shared over 33,000 times.

For the solution, scroll down past the comments to reveal the hidden picture.

a Facebook post of a meme that reads, "I cannot unsee what has been seen"

Is it formidable?

assets.rebelmouse.io

Facebook comment that reads, "Oh! It's amazing when it suddenly appears!"

Amazing!

via Facebook

A Facebook comment that reads, "I had a freaking light bulb moment for a second.. #cantunsee"

A light bulb moment.

via Facebook

Facebook comment that reads, "I'm so stressed looking at this."

Stressing out.

via Facebook

Facebook comment that reads, "Just got it very good. At first I thought it was a wasp carrying something with its legs (side on)."

Not an insect.

via Facebook

It's a cowboy with half of his face obscured by a shadow. Facebook user Cristian-Dumitru Popescu created a cool graphic that explains it.

optical illusion of a cowboy labeled so viewers can see the image clearly.

The cowboy face breakdown.

via Facebook

This article originally appeared eight years ago.

Photos combined from Pixabay.

Car door and the beach.

Ancient sage Obi-Wan Kenobi once remarked, "Your eyes can deceive you, don't trust them." Well, he's right. Kinda.

Our eyes bring in information and it's our brain's job to decipher the image and determine what we're seeing. But our brains aren't always correct. In fact, sometimes they can be so wrong we wonder if we are accurately interpreting reality at all.

After all, our brains can only label things if it knows that they are. If you lived on a deserted island your whole life and a cow showed up on the beach, you'd have no idea what to label it.

The latest baffling image that's making people across the Internet doubt their senses is a picture tweeted out by X (formerly Twitter) user nayem. "If you can see a beach, ocean sky, rocks and stars then you are an artist," the comment reads.

But some people who see it also think it looks like a car door. What do you see?

optical illusion

Beach or a rusty door?

via nxyxm / Twitter

If your brain told you the picture is of a lovely evening laying on the beach then you're definitely an optimist. But, according to the person who posted it, the photo is of the bottom of a rusted out car door. Not very romantic, is it?

screenshot of a Tweet

The tweet has since gone viral, earning over 5,000 likes.

via nxym /Twitter

Here's what Twitter users thought about the illusion.

screenshot of twitter comment

Yum.

via X/Twitter.

This guy must be hungry.

screenshot of a Tweet

A clever call back.

via Twitter.

This guy is having flashbacks to 2015.

screenshot of a Tweet

Knowing the difference through skills.

via Twitter.

Your perception determines your reality.

screenshot of a Tweet

Drawing skills.

via Twitter.

This guy explains it perfectly.

screenshot of a Tweet

Boat on the beach.

via Twitter.

This guy has a great imagination.

So, what's going on?

This photo is just another optical illusion, and it can help us learn a lot about our brains. As mentioned, our eyes and other senses gather information and send it to our brains. From there, our brains create our perception of the world, but it doesn't always reflect reality. According to the American Museum of Natural History, this means is that when the brain is presented with incomplete information, it "fills in the gaps" to create an image or understanding where there wasn't one before. Even more interesting, since no two brains are totally alike, people tend to see optical illusions differently. Research suggests that cultural factors, experiences, and how we process visual information all account for why two people may look at the same illusion and have totally different takeaways.

Neat!


This article originally appeared four years ago.

Watch "The Starry Night" come to life with this optical illusion.

Vincent Van Gogh's "The Starry Night" is one of the most recognizable and beloved paintings in the world. It was completed in 1889 and has been part of the permanent collection of the Museum of Modern Art in New York City since 1941. It is not up for sale, but if it were to go to auction there is a chance it could fetch as much as billion dollars.

Such a priceless work of art is perhaps a strange object for a parlor trick, but trust me when I tell you this one is worth it. Whether they are oases in the desert created by heat shimmer, an elephant with an indeterminate number of legs or straight lines that look crooked, optical illusions can throw our brains for a loop. They can also be super fun, and an optical illusion that makes the "Starry Night" painting turn into a moving picture is most definitely fun.

The illusion, shared by Alex Verbeek on Twitter, involves two steps. First, you stare at the center of a spinning spiral image for 20 seconds, then you look at the painting. Staring at the spinning spiral isn't as easy as it sounds—it makes your eyes buggy and your brain hurt a little—but even if you don't do the full 20 seconds, you can probably get the effect.

Aim for staring at the center of the spiral for at least 10 seconds, then watch "The Starry Night" come to life before your eyes. (You have to click "play" first, by the way. The spirals need to be swirling.)

Want a larger version of the painting to try it out on? Here you go:

Van Gogh Starry Night

Vincent Van Gogh's "The Starry Night" (1889)

"Van Gogh's Starry Night" by Christopher S. Penn is licensed under CC BY 2.0.

The effect doesn't last long, but phew. Our brains are so bizarre.

According to a 2009 study by Japanese researchers, motion in optical illusions is still processed in the brain the same way real motion is. So don't be surprised if the moving painting makes you feel a bit woozy, if you're prone to motion sickness.

It's hard to believe that Van Gogh's "Starry Night" could be improved upon, but here we are. Definitely a "moving" experience to share with your friends.


This article originally appeared two years ago.