在事件编码过程中,主观地重温过去的事件是通过前运动-海马合和身体自我意识调节的
Nathalie Heidi Meyer1, Lucas Burget1, Baptiste Gauthier1,2
1Laboratory of Cognitive Neuroscience, Neuro-X Institute, Faculty of Life Sciences, Ecole Polytechnique Fédérale de Lausanne, Geneva, Switzerland.
Imaging neuroscience (Cambridge, Mass.)
|December 18, 2025
概括
在记忆编码过程中,身体自我意识通过调节背部前运动皮质和海马体之间的功能连接来影响自主意识. 这种连接性将代理感与以后重温过去事件联系起来.
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
- 人类意识研究 人类意识研究
背景情况:
- 自主意识 (ANC) 允许通过感官和情感细节重新体验过去的事件.
- 身体自我意识 (BSC) 影响ANC,但其神经支柱尚不清楚.
- 背部前运动皮质 (dPMC) 和海马体与BSC和情节性记忆有关.
研究的目的:
- 研究将BSC与ANC联系起来的神经机制.
- 探索dPMC和海马体之间的功能连接在调节ANC中的作用.
- 为了确定编码过程中的BSC操纵是否会影响以后的自发性重生.
主要方法:
- 在虚拟场景编码过程中利用虚拟现实 (VR) 来操纵身体自我意识 (BSC).
- 多种视觉运动反和视角 (第一人称与第三人称) 来改变BSC.
- 在编码过程中记录了大脑活动 (fMRI),并在一周后通过问卷评估了自主意识 (ANC).
主要成果:
- 左海马和左dPMC之间的功能连接与视觉运动和视角一致性有所不同.
- 这种连接模块化了编码过程中的代理感 (SoA) 和随后的ANC之间的关联.
- 左上方的dPMC-海马连接加强了SoA-ANC链接;在右半球没有这种效果.
结论:
- 背前运动皮质在自主意识中起着至关重要的作用.
- 记忆编码期间的主观身体体验与以后的主观重新体验有关.
- dPMC-海马体功能连接是介导BSC对ANC影响的关键神经机制.
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