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7 Illusions that blew our thoughts in 2018

It is extremely easy to fool our brain – and we are strangely pleased with it. But it is also a practical side for illusions, and learns where the brain gets confused can help us understand how it works to organize information in the first place.

Sometimes, a few color rays can slip in a certain way "wrong" to the brain. In response, brain cells will start burning to "correct" our vision … and the scene will disappear. Other times, a picture that looks like a duck can look like a rabbit if you really try to see it. But the brain won't let you see both the rabbit and the spirit at exactly the same time, you have to tell it a story first. And it is not just the vision that tricks us ̵

1; the same recording of a word may sound like "Yanny" to some people and "Laurel" to others. What you see or hear is not always what happens.

Here are some of Live Sciences' favorite illustrations from 2018.

This illusion cannot help you go back and waste your coffee all the time a stranger, but it will bring you back in time – if only a second. The video demonstrates a concept called "postdiction" (like "prediction", but after, not before), the idea of ​​seeing a new stimulus can change a person's perception of a stimulus that occurred just a small sequence before.

To see the illusion in action, watch the video with sound and count the number of flashes you see.

In fact, there are two flashes. But for the first time, there are three beeps, with one sounding in the middle of the two flashes, so the brain uses "postdiction" to fill in an extra flash between the two real, thinking that you just have to miss it. It also shows how sound and vision can merge and throw each other, just to joke around.

[Read more about these flashes and beeps]

Arrow pointing straight. The person rotates it 180 degrees. The arrow still points to the right. The person rotates it 180 degrees. The arrow points straight.

This is an optical illusion designed by mathematician Kokichi Sugihara – and it's madman. The brain has one thing to find right angles, even when there are no. Basically, the brain sees your curves, but pretends to be right angles. This phenomenon is called the "ambiguous cylinder illusion" in which the brain tries to create order out of chaos, but by doing so, you see something completely different from what is in front of you.

[Read more about this maddening arrow] [19659004] Vanishing colors

This image will disappear if you stare at it (can take a minute) from r / woahdude

Stare at this illusion, see also, and it disappears To try So, choose a place to focus on, and pastel colors will fade away. The illusion illustrates which researchers call the "Troxler effect". It is thought to arise because the brain is trying to be effective and is very good at adapting to new stimuli. In fact, the brain does this every day – it helps you ignore the feel of the ring on the hand, the air drone and the smell of the office. The brain does not help you to be overwhelmed by unchanged stimuli, so you can focus on other things.

Ignaz Paul Vital Troxler, a Swiss physician and polymat, first discovered this effect. He found that when a person stares at a particular unchanged place for a long time, details in their peripheral vision begin to fade. If these details are blurred or low in contrast to these pastels, they become faster.

[Read more about these disappearing colors]

  What do you see when you look at this picture of the artist Joseph Jastrow, published in 1899 in Popular Science Monthly?

What do you see when you look at this picture of the artist Joseph Jastrow, published in 1899 in Popular Science Monthly?

Credit: Fine Art Images / Heritage Images / Getty

] Do you see a duck or a rabbit? This picture shows how the same can be seen in two different ways – but also warns you to see something that you want to see it. Let's say at first glance you can see the spirit. Then someone shows you the rabbit and now you can see the rabbit. But you probably don't see both animals at the same time. This is even more difficult to do when you add a copy of the image next to the first one – you will probably see two rabbits or two ends.

But there is a way to see both animals at once by creating a History in your brain (in other words, contextualizing it). For example, "the spirit eats a rabbit." If you add context, the brain can zoom out of the details and see the bigger picture – and the story. But phrases like "imagine a spirit next to a rabbit" would not work because your brain doesn't know which is the spirit and like the rabbit.

[Read more about the duck and the rabbit]

The yellow text that disappears in a black background far, far away is an iconic feature of "Star Wars" movies – and something that can also easily be transformed into an optical illusion. If the yellow text is duplicated and placed right next to the original, in exactly the same direction, people will begin to see one moving toward the left side of the screen and one to the right, even if it is the same text, moving in exactly the same direction. This is known as "Star Wars scroll illusion", which was first explored by Arthur Shapiro, a visual illusion expert and professor at American University. A non-moving version of this illusion, called "The Leaning Tower Illusion", was previously studied. If you place two identical pictures of the crooked tower in Pisa next to each other, they look like they are leaning in different directions. [19659002] The trick has to do with how your brain perceives the disappearance points on the screen, or where the text or towers disappear. For one reason unknown, when these two identical scrolls of text are placed side by side, the brain sees the vanishing points in different places than they actually are.

[Read more about the Star Wars scroll illusion]

2018 was not just a year for optical illusions – it was also an auditory illusion that swept the internet in May this year. Enter Yanny and Laurel.

Why do these two words break apart? Yanny and Laurel both have the same timing and energy content as words, so they are easily interchangeable, experts say. In fact, there is no "true" word – in other words, no right answer – but instead a set of frequencies for your brain to interpret. One idea is that the brain picks a word and convinces itself that it is the right interpretation, so that is what you hear. In addition, your past experiences and expectations can shape whether you hear Yanny or Laurel.

[Read more about Yanny and Laurel]

"My wife and my mother-in-law" is a famous optical illusion that depicts both an old woman looking to the left and a young woman looking away and looking over her right shoulder. (The old woman's nose is the young woman's garden.)

Credit: Public Domain

"My wife and my mother-in-law" is an illusion that first appeared on a German postcard in the late 1800s. The picture shows two. There are two ladies in the picture, a young woman with her head over her shoulder and an old woman looking straight ahead. But what woman you see in the first place may depend on how old you are, according to a study published this year. A new study this year found that how old you are can affect who you see first. Using the online audience platform Amazone's Mechanical Turk, researchers found that younger people used to see the younger woman, while the elderly population saw the older woman. The researchers also asked participants to estimate the woman's age. The younger the participant was, the younger she said the woman was. The cause may be due to a "self-age bias", which means that we treat faces from many years that spring more thoroughly than faces of other ages, or it may be due to socio-cultural practices to be less inclusive to the elderly, according to the paper.

[Read more about this ageless woman]

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