Brain prints are like fingerprints

Researcher Enrico Amico and colleagues from the Polytechnic School of Lausanne Identified the signs of brain activity that make up our brain imprint, just like a fingerprint, Can we read in a press release published by the Foundation.

Researchers Dimitri van de Vel and Enrico Ameco.

Photo: EPFL / Alain Herzog

But, unlike those in the fingers, the brain fingerprints obtained from the neural network can change over time.

Kontum 101

  • A neural network is a map of neural networks.
  • It is obtained from an MRI that measures brain activity over a specific period of time.
  • These images (functional connections of the brain) allow researchers to produce a summary of brain activity. This composition is reflected in the form of a graph represented in the form of colored matrices.

By observing the neural network, It is possible to determine what a person is doing during the examination. If he is inactive or if he is performing a task, for exampleEnrico Ameco explained.

Neural networks change depending on the exercise in the brain and the areas used.

Quote from:Enrico Ameco

Distinctive footprints

Already, a few years ago, American scientists studying the neural network were able to combine two different MRI scans of the same subject, conducted several days.

Based on the curves, the researchers were able to match the two scans in nearly 95% of cases, thus identifying the person by their brain fingerprint., notes Mr. Ameko in the press release.

This is really impressive, because it does not depend on the image of the brain, but only on the neural network, which are basically sets of correlation degrees.Researcher continues.

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However, even today, these brain fingerprints have always been obtained using MRI scans taken for several minutes.

The Enrico Amico team wanted to know how long a fingerprint could be created and how long it could last.

So far, we have been able to find the fingerprint between two different scanners, because the analysis period was still long. Does it appear on a photo taken in 5 seconds for example? Where does it take longer? What if fingerprints appeared from different areas of the brain at different times? Nobody had answers to these questions. So we played with the schedule by changing itEnrico Ameco asks.

His team was unable to identify any information from a brain fingerprint within seven seconds, but some data was found to be detectable from one minute and 40 seconds.

We realized we could find clues to brainprints in very short moments. So we don’t need an MRI that summarizes brain activity over a 5-minute period. […] We can feel satisfied with a more brief observation timeAdds the scientist who publishes details of his work in the magazine science progress (A new window) (in English).

In addition, his analyzes showed that the information detected faster comes from sensory parts of the brain, such as those related to eye movements and visual perception.

Over time, areas of the frontal cortex, associated with more complex cognitive functions, begin to reveal information that is unique to each of us.

Quote from:Enrico Ameco, Chercher

What about the affected brain?

The Swiss team now wants to compare the brain fingerprints of people with Alzheimer’s disease.

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From my initial investigations, it appears that all of these unique features that make up the brain imprint disappear as the disease progresses. It becomes more and more difficult to identify the patient on the basis of his neural networkby M. Amico

It’s as if a person with Alzheimer’s is losing their brain identity.

Quote from:Enrico Ameco

For this reason, fingerprints can help in the early detection of neurological diseases.

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