概念的心理搜索得到了自我中心的矢量表示和重组的网格地图的支持
Simone Viganò1,2, Rena Bayramova3, Christian F Doeller3,4,5
1Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany. vigano@cbs.mpg.de.
Nature communications
|December 8, 2023
概括
人类大脑在物理空间和概念空间中使用自我中心和非中心的参考框架进行导航. 这项研究揭示了头顶皮质如何在心理搜索过程中支持自我中心的表征,补充了认知地图.
科学领域:
- 神经科学是一个神经科学.
- 认知科学 认知科学
- 神经成像是一种神经成像.
背景情况:
- 人类大脑,特别是海马体-内系统,为空间和抽象信息形成非中心的认知地图.
- 了解大脑如何在概念空间中导航对于认知神经科学至关重要.
研究的目的:
- 在以目标为导向的心理搜索过程中,研究在概念空间中自我中心的表征背后的神经机制.
- 探索人类记忆和导航中的自我中心和非中心参考框架之间的相互作用.
主要方法:
- 功能磁共振成像 (fMRI) 用于研究大脑活动.
- 分析的重点是头皮皮层的活动和脑内皮层,前额皮层和头皮皮层的网状信号.
主要成果:
- 人体皮层在概念空间的心理搜索过程中产生自我中心的表现.
- 类似网格的神经信号,表明全中心地图,由概念空间中的目标近距离调节.
- 这些发现表明在记忆检索中使用补充参考框架.
结论:
- 大脑利用自我中心和非中心的参考框架来灵活地在概念记忆中导航.
- 周围皮质在自我中心的概念表现中发挥着关键作用,支持以目标为导向的心理搜索.
- 这些机制可以有效地并行访问存储的概念信息.
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