Does extraversion predict positive incentive motivation?
Abstract
<jats:p>I focus on a number of issues arising from Depue &
Collins's target article that require further consideration:
(1) data that fail to confirm extraversion effects in positive
incentive experiments; (2) the role of personality factors, other
than extraversion, in dopamine agonism on positive mood states;
(3) the role of extraversion in nonspecific arousal, indicating that
extraversion may not be an homogeneous trait; and (4) the problem
of identifying neurobiologically important traits from existing
structural models of personality. I applaud the heuristic value of
the model presented and suggest ways in which aspects of the model
may be used to identify the personality traits associated with
positive incentive motivation.</jats:p>
