Memory on time.

Memory on time.
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DOI:
10.1016/j.tics.2012.12.007
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发表时间:
2013-02
影响因子:
19.9
通讯作者:
Eichenbaum H
Eichenbaum H
中科院分区:
心理学1区
文献类型:
--
作者:
Eichenbaum H

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最近的大量研究表明,海马体对于记忆不同经历中事件的顺序至关重要,这是情景记忆的一个定义性特征。相应地,海马神经元活动可以“重放”记忆中的顺序事件,海马神经元集合代表逐渐变化的时间背景信号。最引人注目的是,单个海马神经元(称为时间细胞)在时间结构化的经验中编码时刻,就像众所周知的位置细胞在空间结构化的经验中编码位置一样。这些观察结果在很大程度上弥合了关于海马在情景记忆和空间映射中的作用的不相关文献,并表明海马的基本功能是建立组织记忆的时空框架。
Considerable recent work has shown that the hippocampus is critical for remembering the order of events in distinct experiences, a defining feature of episodic memory. Correspondingly, hippocampal neuronal activity can ‘replay’ sequential events in memories and hippocampal neuronal ensembles represent a gradually changing temporal context signal. Most strikingly, single hippocampal neurons – called time cells – encode moments in temporally structured experiences much as the well-known place cells encode locations in spatially structured experiences. These observations bridge largely disconnected literatures on the role of the hippocampus in episodic memory and spatial mapping, and suggest that the fundamental function of the hippocampus is to establish spatio-temporal frameworks for organizing memories.
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发表时间: 2010-05-26
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