The introvert brain is not the same as an extravert brain

13 February 2023

Neuroscientist and author Friederike Fabritius, writing for CNBC:

One Harvard study found that introverts’ brains work differently, and have thicker gray matter compared to extroverts. In people who are strongly extroverted, gray matter was consistently thinner. Introverts also showed more activity in the frontal lobes, where analysis and rational thought take place. Another study that scanned brains of both introverts and extroverts found that, even in a relaxed state, the introverted brain was more active, with increased blood flow.

I never thought of looking at it this way. The thicker their grey matter, the less a person generally talks. The thinner a person’s grey matter, the more they talk, possibly nonstop. Now there’s a topic of dinner table conversation for you.

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