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Memory hierarchies map onto the hippocampal long axis in humans.

ABSTRACT: Memories, similar to the internal representation of space, can be recalled at different resolutions ranging from detailed events to more comprehensive, multi-event narratives. Single-cell recordings in rodents have suggested that different spatial scales are represented as a gradient along the hippocampal axis. We found that a similar organization holds for human episodic memory: memory representations systematically vary in scale along the hippocampal long axis, which may enable the formation of mnemonic hierarchies.

SUBMITTER: Collin SH

PROVIDER: S-EPMC4665212 | biostudies-literature | 2015 Nov

REPOSITORIES: biostudies-literature

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Memory hierarchies map onto the hippocampal long axis in humans.

Collin Silvy H P SH Milivojevic Branka B Doeller Christian F CF

Nature neuroscience 20151019 11

Memories, similar to the internal representation of space, can be recalled at different resolutions ranging from detailed events to more comprehensive, multi-event narratives. Single-cell recordings in rodents have suggested that different spatial scales are represented as a gradient along the hippocampal axis. We found that a similar organization holds for human episodic memory: memory representations systematically vary in scale along the hippocampal long axis, which may enable the formation o ...[more]

PMID: 26479587

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