Time cells in the hippocampus: a new dimension for mapping memories

被引：455

作者：

Eichenbaum, Howard ^{[1
]}

机构：

[1] Boston Univ, Ctr Memory & Brain, Boston, MA 02215 USA

来源：

NATURE REVIEWS NEUROSCIENCE | 2014年 / 15卷 / 11期

关键词：

MEDIAL TEMPORAL-LOBE; EPISODIC MEMORY; ASSEMBLY SEQUENCES; DEFERRED IMITATION; ENTORHINAL CORTEX; NEURAL MECHANISMS; SINGLE NEURONS; PLACE; ORDER; REPRESENTATION;

D O I：

10.1038/nrn3827

中图分类号：

Q189 [神经科学];

学科分类号：

071006 [神经生物学];

摘要：

Recent studies have revealed the existence of hippocampal neurons that fire at successive moments in temporally structured experiences. Several studies have shown that such temporal coding is not attributable to external events, specific behaviours or spatial dimensions of an experience. Instead, these cells represent the flow of time in specific memories and have therefore been dubbed 'time cells'. The firing properties of time cells parallel those of hippocampal place cells; time cells thus provide an additional dimension that is integrated with spatial mapping. The robust representation of both time and space in the hippocampus suggests a fundamental mechanism for organizing the elements of experience into coherent memories.

引用

页码：732 / 744

页数：13

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