Neurobiology of the structure of personality: dopamine, facilitation of incentive motivation, and extraversion.

@article{Depue1999NeurobiologyOT,
  title={Neurobiology of the structure of personality: dopamine, facilitation of incentive motivation, and extraversion.},
  author={Richard A. Depue and Peter Collins},
  journal={The Behavioral and brain sciences},
  year={1999},
  volume={22 3},
  pages={
          491-517; discussion 518-69
        }
}
Extraversion has two central characteristics: (1) interpersonal engagement, which consists of affiliation (enjoying and valuing close interpersonal bonds, being warm and affectionate) and agency (being socially dominant, enjoying leadership roles, being assertive, being exhibitionistic, and having a sense of potency in accomplishing goals) and (2) impulsivity, which emerges from the interaction of extraversion and a second, independent trait (constraint). Agency is a more general motivational… Expand
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