Study maps extroversion types in the brain's anatomy

http://www.eurekalert.org/pub_releases/2015-02/bu-sme022515.php

Public Release: 25-Feb-2015
Brown University

Everyday experience and psychological studies alike tell us that there are two different types of extroverts: The gregarious "people-persons" who find reward in sharing affection and affiliation with others, and the ambitious "go-getters" who flash those bright-white smiles in their pursuit of achievement and leadership agendas. A new study shows that these overlapping yet distinct personalities have commensurately overlapping yet distinct signatures in the anatomy of the brain.

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