Testing predictions from personality neuroscience. Brain structure and the big five.

Testing predictions from personality neuroscience. Brain structure and the big five.
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DOI:
10.1177/0956797610370159
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发表时间:
2010-06
影响因子:
8.2
通讯作者:
Gray JR
Gray JR
中科院分区:
心理学1区
文献类型:
--
作者:
DeYoung CG;Hirsh JB;Shane MS;Papademetris X;Rajeevan N;Gray JR

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我们使用大五人格特征的生物学基础的新理论来生成关于每个特征与不同大脑区域的体积之间的关联的假设。控制年龄、性别和全脑体积后,116 名健康成年人的结构磁共振成像结果支持了我们对五种特质中四种的假设:外向性、神经质、随和性和责任心。外向性与内侧眶额皮层的体积共变,内侧眶额皮层是参与处理奖励信息的大脑区域。神经质与与威胁、惩罚和负面情绪相关的大脑区域的体积共同变化。宜人性与处理有关其他人的意图和心理状态信息的区域的数量有关。责任心与外侧前额皮质的体积相关,外侧前额皮质是参与计划和自愿控制行为的区域。这些发现支持了我们基于生物学的“大五人格”解释模型,并证明了人格神经科学(即使用神经科学方法对人格个体差异进行系统研究)作为一门学科的潜力。
We used a new theory of the biological basis of the Big Five personality traits to generate hypotheses about the association of each trait with the volume of different brain regions. Controlling for age, sex, and whole-brain volume, results from structural magnetic resonance imaging of 116 healthy adults supported our hypotheses for four of the five traits: Extraversion, Neuroticism, Agreeableness, and Conscientiousness. Extraversion covaried with volume of medial orbitofrontal cortex, a brain region involved in processing reward information. Neuroticism covaried with volume of brain regions associated with threat, punishment, and negative affect. Agreeableness covaried with volume in regions that process information about the intentions and mental states of other individuals. Conscientiousness covaried with volume in lateral prefrontal cortex, a region involved in planning and the voluntary control of behavior. These findings support our biologically based, explanatory model of the Big Five and demonstrate the potential of personality neuroscience (i.e., the systematic study of individual differences in personality using neuroscience methods) as a discipline.
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