暗三位一体的个性特征与"社会大脑"结构中的灰质体积减少有关
Artem Myznikov1, Alexander Korotkov1, Maya Zheltyakova1
1Russian Academy of Science, N.P. Bechtereva Institute of Human Brain, Saint Petersburg, Russia.
Frontiers in psychology
|January 29, 2024
概括
这项研究探讨了黑暗三位一体人格特征中的神经生物学差异. 高级黑暗三位一体的特征与大脑区域的灰质体积减少有关,这些区域用于情绪调节和奖励处理.
科学领域:
- 神经科学是一个神经科学.
- 心理学 心理学 心理学
- 社会行为 社交行为
背景情况:
- 黑暗三位一体 (自恋,精神病,马基雅维利主义) 包含社会相关的个性特征.
- 现有的神经成像研究主要集中在个体特征上,忽视了黑暗三位一体的个人资料.
- 了解黑暗三位一体个人资料的神经生物学基础对于社会互动研究至关重要.
研究的目的:
- 为了研究不同黑暗三位一体人格特征之间的神经解剖学差异.
- 识别与不同程度的黑暗三位一体特征突出相关的大脑结构.
主要方法:
- 聚类分析 (k-平均值) 来自129名健康受试者的Dirty Dozen黑暗三元组问卷分数.
- 基于voxel的形态测量 (VBM) 用于比较已识别的集群之间的灰质体积 (GMV).
- 变异比率标准 (VRC) 用于确定最佳集群数量.
主要成果:
- 两个不同的群体出现了:低至中和中至高的黑暗三合一特征突出.
- 高级暗三角特征与背侧前额皮质和带带皮质 (情绪调节) 的GMV降低有关.
- 在腹状条纹体和轨道前皮层 (奖励系统) 中也观察到减少的GMV.
结论:
- 在不同的黑暗三位一体形状中存在神经生物学变异.
- 参与情绪调节和奖励处理的特定大脑区域显示了与黑暗三位一体特征水平相关的结构差异.
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