Human brains are hardwired for empathy and friendship

Last Updated : 04 May 2018, 11:30 IST
Last Updated : 04 May 2018, 11:30 IST

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Humans are hardwired to empathise because they closely associate people who are dear to them - friends, spouses, lovers - with themselves, a new study suggests.

"With familiarity, other people become part of ourselves," said James Coan, a psychology professor in University of Virginia.

Researchers used functional magnetic resonance imaging brain scans to find that people closely correlate people to whom they are attached to themselves. "Our self comes to include the people we feel close to," Coan said.

In other words, our self-identity is largely based on whom we know and empathise with.
Coan and colleagues conducted the study with 22 young adult participants who underwent fMRI scans of their brains during experiments to monitor brain activity while under threat of receiving mild electrical shocks to themselves or to a friend or stranger.
The researchers found that regions of the brain responsible for threat response - the anterior insula, putamen and supramarginal gyrus - became active under threat of shock to the self.

In the case of threat of shock to a stranger, the brain in those regions displayed little activity.

However when the threat of shock was to a friend, the brain activity of the participant became essentially identical to the activity displayed under threat to the self. "The correlation between self and friend was remarkably similar," Coan said.

"The finding shows the brain's remarkable capacity to model self to others; that people close to us become a part of ourselves, and that is not just metaphor or poetry, it's very real. Literally we are under threat when a friend is under threat. But not so when a stranger is under threat," said Coan.

Coan said this likely is because humans need to have friends and allies who they can side with and see as being the same as themselves. And as people spend more time together, they become more similar.

"It's essentially a breakdown of self and other, our self comes to include the people we become close to," Coan said.

"If a friend is under threat, it becomes the same as if we ourselves are under threat. We can understand the pain or difficulty they may be going through in the same way we understand our own pain," said Coan.

The study appears in the journal Social Cognitive and Affective Neuroscience.

Published 24 August 2013, 12:44 IST

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