Schultheiss Oliver C, Wirth Michelle M, Waugh Christian E, Stanton Steven J, Meier Elizabeth A, Reuter-Lorenz Patricia
Department of Psychology, University of Michigan, Ann Arbor, Michigan, USA.
Soc Cogn Affect Neurosci. 2008 Dec;3(4):333-43. doi: 10.1093/scan/nsn030. Epub 2008 Oct 8.
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.
内隐权力动机(nPower)与权力激励相互作用时,会影响介导动机的脑系统的激活。根据图片故事的内容编码评估,从一个更大的初始参与者群体中选出12名nPower较低(最低四分位数)的个体和12名nPower较高(最高四分位数)的个体,他们参与了一项功能磁共振成像研究,在此期间,他们在oddball任务条件下观看高主导性刺激(愤怒面孔)、低主导性刺激(惊讶面孔)和对照刺激(中性面孔、灰色方块)。与假设一致,高权力参与者在涉及情绪和动机的脑结构(脑岛、背侧纹状体、眶额皮质)中对情绪面孔的反应比低权力参与者表现出更强的激活。