Better friends match not only the preference but also the pattern of the brain, it is possible to distinguish whether it is a friend from the brain scan

bySharon McCutcheon

People are unconsciously often friends with people who resemble themselves, and it has been found that close friends are genetically similar. Besides that, in a new study, it was shown that "the brains of friends are similar so that they can judge whether they are friends or not just by looking at the brain pattern matching."

Similar neural responses predict friendship | Nature Communications
https://www.nature.com/articles/s41467-017-02722-7

You Share Everything With Your Bestie. Even Brain Waves. - The New York Times
https://www.nytimes.com/2018/04/16/science/friendship-brain-health.html

In previous studies, it has been shown that people become friends and people who resemble themselves in terms of age, race, religion, social status, educational level, etc. In the research of 2017, It is shown that people who resemble similar people are separated and become friends. "

You and your friends are genetically similar, why? - GIGAZINE


A new study conducted by Professor Caroline Parkinson, a cognitive scientist at the University of California, showed that the two brains in close friendships showed very similar responses. In the study, the brains of friends when seeing some short videos showed the same excitement in attention and distraction, and said that they also showed the same peaks in the treatment of boredom and rewards. In the case of two people who are not friends, the brain did not share reactions in this way, so the researchers said that they could predict whether two people are friends or not by simply looking at the image of the brain scan.

This study covered 279 graduate students, all the subjects knew about each other, some of them were living in the same dormitory. The subjects firstly answered, for example, who to eat with other graduate students on a question, who called home, who to go to the movies with? From the information of the questionnaire researchers analyzed the relationship between subjects as "Friends" "Friends of friends" "Friends of friends of friends"Kevin · Bacon numberFriends "and so on, and mapped social networks.

bybyung chul kim

After that, we asked two subjects in different places to see several short movies in succession and tracked the students' brain blood flow with fMRI scan. The content of the movie shows how Mr. Chris Hadfield of the astronaut shows how water moves in a low gravity environment, sentimental scenes where two gay people celebrate the Jewish wedding ceremony, comedy It was various things such as the image of.

When analyzing the scanned image, Professor Parkinson and others found that there is a strong agreement between the blood flow pattern, which is an indicator of neural activity, and the relationship between the subjects. Considering other factors such as ethnicity, religion, household income, it seems that the tendency of the neural reaction did not change. Especially,Nucleus accumbensIt is said that matching of patterns was strongly seen in the part which handles the rewards. The researchers said that they could create algorithms to predict the social distance of two people using the results of the research.

To be lonely without friends is said to be emotionally and physically comparable to risk factors such as obesity, high blood pressure, unemployment, lack of exercise, smoking, and many researchers have said that the scientific nature of friendship I am advancing research on how to evolve like a throat. For example, Professor Nicholas Crystakis, a biological sociologist at Yale University, has conducted research so far, and those who have strong social connections are considered to be responsible for a variety of diseases - proteins related to chronic inflammationFibrinogenShowed a low level. However, the mechanism of why sociability is blocking inflammation is not clear as of April 2018.

byMatheus Ferrero

Also in this research, it is unclear how the pattern matching affects the attitude, opinion, impulse etc of the two people. The researchers are planning to scan the brains of students who are just unfamiliar with just entering school and want to observe whether they eventually become good friends.