恐惧感知是半球和时间特定动态的函数,在中间叶中
Enya M Weidner1, Lea Marie Reisch2,3, Malena Mielke2
1Department of Psychology, Bielefeld University, Bielefeld, Germany. enya.weidner@uni-bielefeld.de.
Communications biology
|July 27, 2025
概括
右侧中间叶 (mTL) 帮助快速处理恐惧和马波段活动 (GBA) 的分化,而左侧mTL则对恐惧反应进行下调调. 这揭示了情绪视觉中的横向角色.
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
- 情感视觉 情感视觉 情感视觉
背景情况:
- 中间叶 (mTL) 参与处理恐惧的面孔.
- 在视觉恐惧处理中的mTL参与背后的机制尚未完全理解.
研究的目的:
- 调查mTL在处理恐惧面孔中的侧面化和特定时间的作用.
- 为了比较中部叶切除患者和健康对照患者之间的神经反应.
主要方法:
- 记录的事件相关潜力 (ERP) 和马波段活动 (GBA).
- 在36名左半球 (lTLR) 或右半球 (rTLR) 切除 (包括杏仁体) 和18名健康对照患者中比较了反应.
主要成果:
- 右半球切除 (rTLR) 患者缺乏早期恐惧中性差异化 (P1幅度) 并显示中性面部GBA升高.
- 左半球切除 (lTLR) 患者在以后的ERP组件中表现出情绪分化.
- 右mTL支持快速的注意力转移到恐惧和GBA协调;左mTL下调恐惧反应.
结论:
- 中间叶在恐惧处理中具有互补的,横向的和特定时间的作用.
- 右mTL,特别是桃体,对于快速恐惧检测和GBA调制至关重要.
- 左侧的mTL似乎在降低恐惧反应的调节中发挥作用,改进了情感视觉模型.
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