神经性和开放性表现出与可解离默认模式网络的反相关性模式:使用休息连接和结构方程建模分析
Shengwen Zhi1,2, Wentao Zhao1,2, Yifei Huang3
1Department of Psychiatry, First Hospital/First Clinical Medical College of Shanxi Medical University, 030001, Taiyuan, P.R. China.
Brain imaging and behavior
|February 27, 2024
概括
默认模式的网络模式是默认的.
科学领域:
- 神经科学是一个神经科学.
- 认知心理学 认知心理学
- 脑部成像 脑部成像
背景情况:
- 默认模式网络 (DMN) 对认知功能至关重要.
- 它包括腹部和背部子系统,参与情感认知和精神感官构建.
- 对于DMN子系统在人格特征方面的不同作用尚不清楚.
研究的目的:
- 调查腹部和背部默认模式网络 (DMN) 子系统的不同功能角色.
- 在健康的成年人中探索神经性,开放性和DMN子系统之间的关系.
- 检查特定的DMN枢纽区域在这些人格特征中的参与.
主要方法:
- 休息状态功能磁共振成像 (fMRI) 用于测量223名健康志愿者的大脑活动.
- 独立组件分析 (ICA) 确定了DMN及其腹部和背部子系统.
- 结构方程建模 (SEM) 分析了枢纽地区的网络连贯性.
主要成果:
- 腹部DMN预测了更高的开放性和更低的神经性.
- 背部的DMN显示了一个相反的预测模式.
- 关键的枢纽,中间前额叶皮层 (mPFC) 和中圈 (MTG),与神经症和开放性都有积极的相关性.
结论:
- 研究结果表明,与人格特征相关的DMN子系统之间存在功能分离.
- 神经性和开放性可能会在DMN中激发相反的神经机制.
- 这项研究为了解人格和DMN功能之间的相互作用提供了神经生物学基础.
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