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The human mind experiences information obesity especially nowadays.
What we see is constantly changing due to changes in light, perspective and other factors.
On the other hand, due to the pulse and the fact that our eyes, head and body are often in motion, even our visual input changes.
To get a better idea of what the chaos is all about, you can watch the video below, in which the white circle on the right shows possible eye movements and the blurred dot on the left reveals unexpected visual inputs to every time.
Despite all this, people perceive the world as a stable environment. Therefore, the question arises as to how our brain creates this illusion of stability.
Psychologists Mauro Manassi from the University of Aberdeen and David Whitney from the University of California have discovered a new mechanism in a new study that, among other things, may explain the emergence of this illusory stability.
It seems that the brain automatically “softens” our visual input. Instead of analyzing each individual moment, he perceives it at a given moment as an average of what we have seen in the last 15 seconds.
So he actually connects the objects to make them look as similar to each other as possible, thus creating the illusion of a stable environment.
This concept of living “in the past” may explain why we do not notice the subtle changes that occur over time.
In other words, the brain is like a time machine that constantly takes us back to the past or like an application that combines our visual data into one impression every 15 seconds, so that we can cope with everyday life.
If our brain were to be updated in real time, the world would look like a rather chaotic place with constant fluctuations of light, shadow and movement. We would feel like we had hallucinations all the time, writes Conversation.
Scientists have created an illusion to better illustrate how this stabilizing mechanism works. If you watch the video (below), the face on the left side ages slowly within 30 seconds, and yet, it is very difficult to discern the full extent of the age change. In fact, observers perceive that the face ages more slowly than it actually is.
While watching the video, we are constantly one-sided towards the past, i.e. the brain constantly takes us back to the previous 10 to 15 seconds when the face looked younger. Instead of looking at the latest face screen in real time, we look at previous versions because the brain is “updated” every 15 seconds. Basically, we recycle information from the past because it is more efficient, faster and requires less work.
The study The illusion of visual stability through active perceptual addiction was published in the journal Science Advances.
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