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感知和记忆检索状态反映在背景功能连接的分布式模式中

Y Peeta Li¹, Yida Wang², Nicholas B Turk-Browne³

¹Department of Psychology, University of Oregon, Eugene, OR, United States.

|June 8, 2023

概括

感知和记忆检索的认知状态具有不同的大脑网络连接模式. 这些背景功能连接差异,独立于视觉刺激,有助于区分这些认知状态.

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
功能神经成像功能神经成像

背景情况:

视觉输入可以用于感知 (外部焦点) 或回忆检索 (内部焦点).
以前的研究集中在刺激引起的活动上,忽视了内在的神经状态.
显著的背景功能连接可能是感知和记忆检索的基础.

研究的目的:

为了研究"背景"功能连接在感知和记忆检索状态之间的差异.
为了确定这些背景连接模式是否独立于刺激引起的神经活动.
识别参与区分认知状态的特定大脑网络.

主要方法:

使用人类功能磁共振成像 (fMRI).
使用完整的相关性矩阵分析 (FCMA) 来评估功能连接.
分析大脑网络内部和大脑网络之间的连接模式,包括控制网络,默认模式网络 (DMN) 和后皮层 (RSC).

主要成果:

感知和检索状态被连接模式准确地区分开来.
在感知过程中,控制网络显示了网络内部连接的增加.
默认模式网络 (DMN) 在内存检索过程中表现出更强的合.
后皮质 (RSC) 根据认知状态动态改变了其网络合.
背景连接独立于与刺激相关的神经活动.

结论:

感知和记忆检索与不同的,持续的认知状态有关.
这些认知状态表现为大规模大脑网络连接的独特模式.
背景功能连接提供了超越刺激引起反应的认知状态的见解.

关键词:

背景连接背景连接情节性记忆是一种情节性记忆.功能性社区是一个功能性社区.机器学习是机器学习.

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