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Updated: May 7, 2025

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对象的动态跟踪在的背中中前皮层中的物体

Rishi Rajalingham^1,2, Hansem Sohn^3,4, Mehrdad Jazayeri^5,6,7

¹McGovern Institute for Brain Research, Massachusetts Institute of Technology, Cambridge, MA, USA.

Nature communications

|January 2, 2025

概括

科学家们发现,前额叶皮层的神经群体动态支持心理模拟. 这表明大脑模拟外部状态,就像跟踪球一样,即使看不到,也支持内部世界模型.

科学领域:

认知神经科学认知神经科学
神经生理学神经生理学
计算神经科学是一种神经科学.

背景情况:

认知神经科学假设内部世界模型和心理模拟用于物理推理.
人类实验在物理推理任务中支持心理模拟理论.
反映环境模拟的人口动态的直接神经证据有限.

研究的目的:

通过检查神经人口动态来测试心理模拟假设.
调查前额叶皮层神经活动是否反映了环境状态的实时模拟.
为提供精神模拟的神经基质的证据.

主要方法:

结合了自然主义的球拦截任务与非人类灵长类动物.
利用大规模的电生理学记录神经活动.
采用反复神经网络 (RNN) 建模用于数据分析.

主要成果:

背中前皮质 (DMFC) 中的神经元显示了球位置的多重表示.
在DMFC中的人口活动形成了一个低维的嵌入,跟踪球的轨迹,可见或不可见.
与DMFC数据相比,RNN模型进一步支持了心理模拟假设.

结论:

额叶皮层的神经动态与外部环境状态的内部模拟相一致.
在物理推理过程中,DMFC活动作为心理模拟的神经基质.
这些发现支持了大脑积极模拟外部世界的理论.

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