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编码目标和行动形式的两个不同的网络: 一个有效的连接性研究研究

Giuseppe Di Cesare^1,2, Giada Lombardi^2,3, Peter Zeidman⁴

¹Department of Medicine and Surgery, University of Parma, Parma 43125, Italy.

Proceedings of the National Academy of Sciences of the United States of America

|June 17, 2024

概括

这项研究揭示了大脑如何处理行动形式或活力形式 (VF),与行动目标不同. 在观察过程中,信息从后部上角流向岛屿,并在执行过程中从前运动皮层流向岛屿.

科学领域:

神经科学是一个神经科学.
认知科学认知科学
社会认知是指社会认知.

背景情况:

以目标为导向的行动涉及内容 (目标) 和形式 (生命力形式,VF).
周周和正面区域已知可以处理动作内容,但对动作形式 (VF) 的神经基础不太了解.
背部中部岛屿 (DCI) 参与观察和执行与VF的行动.

研究的目的:

在观察和执行过程中研究处理动作活力形式 (VF) 的神经通路.
用动态因果建模 (DCM) 来确定与动作VF相关的大脑网络中信息流的方向.

主要方法:

在fMRI数据上使用动态因果建模 (DCM).
分析了大脑关键区域之间的信息流动:后部上时 (pSTS),下叶 (IPL),前运动皮质 (PM) 和背部中部胰岛 (DCI).
利用贝叶斯模型比较来区分竞争网络模型.

主要成果:

在行动观察期间,信息从pSTS流向IPL (针对行动目标) 和DCI (针对VF).
在执行行动时,信息从PM流向IPL (针对行动目标) 和DCI (针对VF).
确定了处理行动目标与行动活力形式的不同途径.

结论:

大脑利用不同的途径来处理行动目标和行动活力形式.
动作活力形式可以通过认知 (PM到DCI) 和潜在的情感 (DCI到PM) 路线引起.
这项研究澄清了如何感知和产生行动执行风格的神经支.

关键词:

动态因果建模动态因果建模岛屿岛屿是一个岛屿.镜子神经元是一种神经元.巴里托-前线网络生命力形式形式生命力形式

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