腹中介前额叶皮层中的子区域整合了威胁和保护信息,以表现安全性
Sarah M Tashjian1,2, Joseph Cussen1, Wenning Deng2
1School of Psychological Sciences, University of Melbourne, Parkville, Australia.
PLoS biology
|January 13, 2025
概括
大脑通过整合外部威胁和自我保护能力来动态编码安全. 腹中前额叶皮层 (vmPFC) 在这个安全估计过程中发挥着关键作用.
科学领域:
- 神经科学是一个神经科学.
- 认知科学 认知科学
- 决策 决策 决策 决策
背景情况:
- 自我保护依赖于区分安全与危险.
- 之前关于安全估计的研究忽视了自我保护能力,只关注外部威胁.
研究的目的:
- 研究参与安全动态,在线编码的神经系统.
- 检查大脑如何将外部威胁水平和自我保护能力与安全估计相结合.
主要方法:
- 利用两个新任务来评估安全估计的四个方面:预测,元表示,识别和值更新.
- 通过改变外部威胁水平和行为 (N=100) 和MRI (N=30) 队列中的自我保护有效性来对感知安全进行实验操纵.
主要成果:
- 由于加强了保护,安全敏感度的主观增加.
- 在腹中介前额叶皮层 (vmPFC) 中发现神经反应,与所有方面安全性增加相关,对保护有特定的敏感性.
- 通过功能连接分析,通过功能连接分析,分别揭示了参与编码外部威胁和保护的不同的vmPFC子区域 (后部和前部).
结论:
- 腹中前额叶皮层 (vmPFC) 是安全的神经编码的核心.
- 安全估计是一个动态的过程,受外部风险和内部保护能力的影响.
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