Differences in regional brain volume related to the extraversion-introversion dimension-A voxel based morphometry study
Differences in regional brain volume related to the extraversion-introversion dimension-A voxel based morphometry study
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DOI：
10.1016/j.neures.2011.10.001
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发表时间：
2012-01-01
影响因子：
2.9
通讯作者：
Ullen, Fredrik
中科院分区：
文献类型：
--
作者：
Forsman, Lea J.;de Manzano, Orjan;Ullen, Fredrik
外向的人善于交际、行为活跃、快乐。我们报告的数据，从体素为基础的形态学研究调查，首次，如果在灰色和白色脑区的区域体积与外倾性。对于灰质和白色物质来说，外向性和局部脑容量之间的所有相关性都是负相关的，即内向者的区域更大。在包括右前额皮质和右颞顶叶交界处周围的皮质在内的区域中发现了灰质相关性-这些区域已知涉及行为抑制，内省和社会情感处理，例如评估社会刺激和推理他人的精神状态。白色物质的相关性从脑干延伸到广泛的皮层区域，这在很大程度上是由于整体效应，即内向者的白色物质总量更大。我们推测，这些白色物质的发现可能反映了上行调节投射的差异，影响参与行为调节的皮质区域。(C)2011 Elsevier爱尔兰有限公司和日本神经科学学会。All rights reserved.
Extraverted individuals are sociable, behaviorally active, and happy. We report data from a voxel based morphometry study investigating, for the first time, if regional volume in gray and white matter brain regions is related to extraversion. For both gray and white matter, all correlations between extraversion and regional brain volume were negative, i.e. the regions were larger in introverts. Gray matter correlations were found in regions that included the right prefrontal cortex and the cortex around the right temporo-parietal junction - regions that are known to be involved in behavioral inhibition, introspection, and social-emotional processing, e.g. evaluation of social stimuli and reasoning about the mental states of others. White matter correlations extended from the brainstem to widespread cortical regions, and were largely due to global effects, i.e. a larger total white matter volume in introverts. We speculate that these white matter findings may reflect differences in ascending modulatory projections affecting cortical regions involved in behavioral regulation. (C) 2011 Elsevier Ireland Ltd and the Japan Neuroscience Society. All rights reserved.