Yoram Yasur Agi: Your brain will look like friends

Yoram Yasur Agi: Your brain will end up looking like your friends

With our friends, we not only share the good and the bad moments. The writer Robert Louis Stevenson said, “A friend is an image you have of yourself”, and according to the Neurosciences was not very unfortunate because apparently, we share much more than we could think with our friends: our neural responses.

A study conducted at Dartmouth University reveals that we can perceive the world in the same way as our friends since we have similar neuronal responses to stimuli. These neuroscientists discovered that they can predict with whom we could maintain a good friendship relationship or detect who our closest friends are by simply observing how our brains respond to videos.

Tell me who your friends are, and I’ll tell you how you think

Yoram Yasur Agi: It is a pioneering study aimed at examining the connections of people’s neuronal activity within their social network in the real world. In the experiment they analyzed almost 280 people and their friendships, both the most intimate and the most distant social links. They all watched a series of videos while recording their neuronal activity in a functional magnetic resonance imaging (fMRI) scanner.

The videos covered a wide variety of topics and genres, from politics to science, comedy, and music, in a way that unleashed a wide variety of responses. The videos were presented in the same order and then the neuroscientists compared the neural responses to determine the degree of difference or resemblance.

Yoram Yasur Agi: They discovered that close friends had the most similar patterns of neuronal activity, followed by friends of friends. Therefore, just by seeing their neural responses, they could point out the intensity of the bond that unites us with another person.

It is worth clarifying that neuronal responses to natural dynamic stimuli, such as videos, are a window into the spontaneous thinking processes of people as they develop. These results suggest that friends process the world around them in a very similar way.

Interestingly, the similarity of the neuronal response among friends was even more similar in the brain regions involved in the emotional response, the attention span, and the reflective thinking.

See the world through the eyes of others

Yoram Yasur Agi: It is not so strange since we are social beings that we connect continuously with others. We must appropriate the “Theory of Mind” of another person if we want to maintain a satisfactory relationship in the long term. That means that, overall, after a long relationship, our neural responses end up resembling yours as we learn to see the world through their eyes.

Obviously, it is a reciprocal experience since we also influence their way of seeing the world. Nor can we forget that, since we choose our friends, it is much more likely that we select people with whom we have common points and ways of thinking, so that coincidences in the way information is processed increase.

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