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Viral game of the week: the riddle of the glasses

Social networks have become the ideal space for the proliferation of enigmas and riddles. In this context, users begin to share different challenges for the most restless minds.

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Such is the case of this new riddle that invites you to find three pairs of glasses hidden in the middle of a sea of ​​scissors. Below is the image mentioned. The challenge is to find the glasses in about 10 to 15 seconds.

In case it has not been resolved in such a short time, you can rest your eyes for a few seconds and try again. Sometimes it helps to look away for a while and then look back at the challenge image.

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Next, the solution to this riddle. The glasses were highlighted so that the location can be seen well:

The shapes, colors as well as the arrangement of different objects on a canvas contribute to generating optical illusions that are real challenges. The brain tries to organize a series of stimuli that, due to different situations, can generate confusion.

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Images where it is difficult to visualize the forms, to find hidden objects even in which some see one object or another. These types of challenges have existed for a long time and the networks have only contributed to making them viral or increasingly visible.

Among the many puzzles of this type, there is the one that invites you to find circles in an image where there only seem to be straight lines, as shown below.

The truth is that in this photo, where there only seem to be rectangular figures, there are circles that are difficult to perceive simply because right angles and shadows stand out more in straight lines than in those that are circular. The trick to seeing the circles is to focus on the center.

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Sometimes the arrangement of geometric figures generates an illusion of movement that actually does not exist.. This can be seen in different graphs such as the one shown below.

When several shapes appear in the same image, the brain has difficulty processing all that information and illusions such as those of movement appear.

The different shades as well as the shadows can give the impression that there are figures in movement when in fact that is not the case.

In 2020, researchers at Damon Clark, from Yale University in the United States, identified that the way in which the human brain is deceived by optical illusions it is similar to how such deception occurs in flies.

Specialists evaluated specific types of neurons involved in motion detection in flies and they found a pattern of responses created by the static image. By turning those same neurons on and off, the researchers were able to modify perception. of the flies of that supposed movement, which is a mere optical illusion.

By turning off two types of motion detection neurons, they eliminated the optical illusion altogether. By turning off only one of the two types, the flies recorded the supposed movement in the opposite direction than when both classes of neurons were active.

With this information They concluded that the optical illusion is caused by small imbalances. They then sought to replicate this same experience with humans and were able to prove that the mechanism underlying the perception of the optical illusion in humans works in a similar way to that of flies. Although the human visual system is much more complex than that of these insects, the way optical illusions are produced is based on broadly the same principle.

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