Extraversion-Introversion

Keywords

Applied psychology; Arousal; Clinical psychology; Construct validation; Dopamine; Extraversion-introversion; Five factor model; Genetics; Neurochemistry; Personality; Psychophysiology; Reinforcement sensitivity; Well-being

Abstract

Extraversion-introversion is a major personality trait which is believed to have a biological basis. This chapter reviews evidence for the validity of extraversion-introversion and its impact on outcomes including mental health and adjustment in educational and occupational settings. Neuropsychological theories of extraversion are reviewed, together with empirical findings inspired by theory. Neuroscience accounts of the trait are supported by findings from behavior and molecular genetics, as well as psychophysiological studies, including brain-imaging. Currently, the predominant theories link extraversion to dopaminergic brain systems for approach and reward. However, tests of theory provide mixed evidence, and neuroscience accounts may require to be complemented with psychological perspectives.

Publication Date

1-1-2016

Publication Title

The Curated Reference Collection in Neuroscience and Biobehavioral Psychology

Document Type

Article; Book Chapter

Personal Identifier

scopus

DOI Link

https://doi.org/10.1016/B978-0-12-809324-5.21765-3

Socpus ID

85084711203 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/85084711203

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