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Dopaminergic influences beyond extraversion

Published online by Cambridge University Press:  01 June 1999

Douglas Derryberry
Affiliation:
Department of Psychology, Oregon State University, Corvallis, OR 97331 {dderryberry; mreed}@orst.edu
Marjorie A. Reed
Affiliation:
Department of Psychology, Oregon State University, Corvallis, OR 97331 {dderryberry; mreed}@orst.edu

Abstract

Studies of human performance indicate that extraverts show enhanced motivation in relation to reward signals, but not in relation to safety signals under defensive conditions. When it occurs under defensive conditions, enhanced motivation may be related to neuroticism. While extraverts show some attentional skills consistent with frontal dopaminergic facilitation, other frontal capacities may be related to conscientiousness. These findings suggest that dopaminergic influences on response and attentional processes may contribute to additional personality dimensions such as neuroticism and conscientiousness.

Type
Open Peer Commentary
Copyright
© 1999 Cambridge University Press

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