In Focus:

Can Brain Scans Reveal Who Your Friends Are?

You and your friends likely share similar interests. But did you know you could also have similar patterns of brain activity?

Dartmouth College researchers assessed the friendships or social ties within a group of nearly 280 graduate students. Brain scans revealed that friends had the most similar brain-pattern responses to videos. And friends of friends had more similar brain activity than friends of friends-of-friends.

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