The lie resides in a brain’s amygdala

What is there after a lie? What is the reason that there are people who cheat over and over again? The postdoctoral researcher from the Neuroscience Institute of Princeton (united States), Neil Garrett, is studying how they reflect the emotions in the brain and in this way, to be able to understand how we feel in certain situations. Specifically, it has been discovered that a brain’s amygdala is the culprit of that sometimes be dishonest.

Garrett, a doctoral student in the department of Experimental Psychology at the University of the city of London (R. Unido), explains that in the time in which a person deceives, activates an amygdala located in a part of the brain linked to emotions.

A series of neurons process the reactions that are then translated in shame or remorse. However, if someone is lying continuously, the brain is just the molding. The functioning of the amygdala is reduced and with it the sense of repentance, which makes it more simple to lie.

The british used to put as an example the moment someone first sees a photo unpleasant. It is safer to have an emotional response overwhelming. However, if you see that image day to day, just making it a habit. The brain of that person is attached to it and no longer reacts so intense.

To test this hypothesis, Garrett and his team did a research that combined the disciplines of computer science, brain imaging, and behavioral economics –which studies the behavior of individuals in different economic conditions–.

Conducted an experiment in which participants had to give financial advice to another person and motivated them to mintiesen. The participants began with small deceptions, but as time passed, it kept growing and the lies they were older.

To examine changes in the brain activity, is carried out by a scanner of a resonance magnetic to the participants while deceiving. Verified that, at the beginning, a part of the brain linked to emotions responded strongly. However, as they were lying more, she responded with less intensity. The lower was the reaction of the amygdala, the participants tended to lie more.

This kind of projects let to better understand the brain, that remains a huge unknown. In truth, the research of Garrett is the first experimental evidence that this type of behavior have a biological reason. Garrett, speaker of the last edition of EmTech France 2017, explains that their goal is not only to better understand the machinery of the human. Put your work as a way to curb these bad behaviors in the society.

One of the approaches that aims is to investigate different ways of encouraging the brain to prevent people from being deceived. Ensures that many indecent acts begin as small deceptions. If these be stopped before they reach arise, we could end the lies of the planet.

Source: Opinno, publisher of the MIT Technology Review in Spanish

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