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Moderators and mechanisms relating personality to reward and dopamine: Some findings and open questions

Published online by Cambridge University Press:  01 June 1999

Petra Netter
Affiliation:
Department of Psychology, University of Giessen, D-35394 Giessen, Germany{petra.netter; juergen.hennig}@psychol.uni-giessen.de
Juergen Hennig
Affiliation:
Department of Psychology, University of Giessen, D-35394 Giessen, Germany{petra.netter; juergen.hennig}@psychol.uni-giessen.de

Abstract

Data from further human experiments touch four open questions in the target article. (1) Extinction of reward acquisition postulated by Depue & Collins's model could not be confirmed if correlating craving for, liking of, and satisfaction from smoking. (2) Intraindividual correspondence between responsivity to dopamine agonists and antagonists could likewise not be confirmed. (3) Nicotine craving and drug-induced hormone responses were not substantially correlated. (4) Low serotonin can be the cause and not just the moderator of dopaminergic sensitivity, and personality correlates of low dopamine/low MAO (aggressive impulsive traits) can hardly be related to the positive emotion associated with dopaminergic activity.

Type
Open Peer Commentary
Copyright
© 1999 Cambridge University Press

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