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Soc Cogn Affect Neurosci. 2008 Dec;3(4):333-43. doi: 10.1093/scan/nsn030. Epub 2008 Oct 8.

Exploring the motivational brain: effects of implicit power motivation on brain activation in response to facial expressions of emotion.

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1
Department of Psychology, University of Michigan, Ann Arbor, Michigan, USA. Oliver.Schultheiss@psy.phil.uni-erlangen.de

Abstract

This study tested the hypothesis that implicit power motivation (nPower), in interaction with power incentives, influences activation of brain systems mediating motivation. Twelve individuals low (lowest quartile) and 12 individuals high (highest quartile) in nPower, as assessed per content coding of picture stories, were selected from a larger initial participant pool and participated in a functional magnetic resonance imaging study during which they viewed high-dominance (angry faces), low-dominance (surprised faces) and control stimuli (neutral faces, gray squares) under oddball-task conditions. Consistent with hypotheses, high-power participants showed stronger activation in response to emotional faces in brain structures involved in emotion and motivation (insula, dorsal striatum, orbitofrontal cortex) than low-power participants.

PMID:
19015083
PMCID:
PMC2607053
DOI:
10.1093/scan/nsn030
[Indexed for MEDLINE]
Free PMC Article
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