在前前骨中处理身体自我的因果证据
Dian Lyu1, James Robert Stieger1, Cindy Xin1
1Laboratory of Behavioral and Cognitive Neuroscience, Stanford University School of Medicine, Stanford, CA, USA; Human Intracranial Cognitive Electrophysiology Program, Stanford University School of Medicine, Stanford, CA, USA; Departments of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA, USA.
Neuron
|June 9, 2023
概括
在人体后中皮层 (PMC) 内,前前 (aPCu) 的电刺激会破坏自我意识. 这个大脑区域对于自我空间认知至关重要,并与默认模式网络 (DMN) 连接.
科学领域:
- 神经科学是一个神经科学.
- 认知神经科学 认知神经科学
- 心理学 心理学 心理学
背景情况:
- 人的后中皮层 (PMC) 参与处理自我意识.
- 要了解特定的PMC亚区域的因果作用,需要直接调查.
研究的目的:
- 调查人类PMC在自我意识中的因果关系的重要性.
- 在PMC中确定特定的子区域,对于自处理至关重要.
主要方法:
- 研究了9名患者,双边电极位于前,后和后区域.
- 使用神经影像,内录音和直接皮质刺激 (DCS).
- 分析了前前 (aPCu) 热带的有效和静止状态连接性.
主要成果:
- 特定前前 (aPCu) 部位的DCS诱导了物理和空间自我感知中的解离性变化.
- aPCu热区位于默认模式网络 (DMN) 外,但与其显示相互连接.
- 连接分析揭示了aPCu与参与自我处理的其他大脑区域之间的功能联系.
结论:
- 前前 (aPCu) 在保持自我意识方面起着因果作用,特别是在物理和空间参考方面.
- 这个PMC子区域是认知过程中不可或缺的组成部分,需要自我空间参考点.
- 这些发现突出了aPCu在自我意识中与默认模式网络 (DMN) 有着独特但相互关联的作用.
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