Cited by 430Memory and Neural MechanismsSpatial Cognition and NavigationMemory Processes and Influences

The role of the hippocampus in navigation is memory

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Eichenbaum, Howard·2017·Journal of Neurophysiology

Abstract

There is considerable research on the neurobiological mechanisms within the hippocampal system that support spatial navigation. In this article I review the literature on navigational strategies in humans and animals, observations on hippocampal function in navigation, and studies of hippocampal neural activity in animals and humans performing different navigational tasks and tests of memory. Whereas the hippocampus is essential to spatial navigation via a cognitive map, its role derives from the relational organization and flexibility of cognitive maps and not from a selective role in the spatial domain. Correspondingly, hippocampal networks map multiple navigational strategies, as well as other spatial and nonspatial memories and knowledge domains that share an emphasis on relational organization. These observations suggest that the hippocampal system is not dedicated to spatial cognition and navigation, but organizes experiences in memory, for which spatial mapping and navigation are both a metaphor for and a prominent application of relational memory organization.

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Crossref · 10.1152/jn.00005.2017

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  • Theta oscillations are not necessary for the emergence of the place code but play a major role in organizing place cell activity into temporal sequences that map available space and episodic events.

    “Theta oscillations—although not necessary for the emergence of the place code21,22—play a major role in organizing place cell activity into temporal sequences that map the available space (and, similarly, episodic events4,23,24).”

    From Place and behavioral modulation of hippocampal neurons during immobility (2026) · cites this paper as [24]

    In “The Hippocampus Also Maps Abstract Spaces” (page unavailable), the paper says hippocampal networks organize memories by mapping the time course of events. This supports the citation’s link to temporally ordered events, but our copy does not say that theta oscillations organize place-cell activity into those sequences. The separate claim that theta is unnecessary for the place code is attached to other citations in the citing sentence. (LLM, conf=0.83)

    Experimental — accuracy not yet measured
  • The mammalian hippocampus is essential to encode the time and order of events, to associate temporally separate stimuli, and to register non-spatial contextual information.

    “Thus, the mammalian hippocampus seems to be also essential to encode the time and order of events, to associate temporally separate stimuli, and to register non-spatial contextual information [216,217,218,219].”

    From Spatial Cognition in Teleost Fish: Strategies and Mechanisms (2021) · cites this paper as [218]

    In “The Hippocampus Also Maps Abstract Spaces” (page unavailable), the paper describes hippocampal involvement in remembering event order and linking nonspatial object memories. It also discusses context-dependent relational memory in “On the Evolution of Cognitive Maps” (page unavailable). It does not specifically establish that the hippocampus is essential for associating stimuli separated in time; its examples of temporal order and object associations do not make that combined claim. (LLM, conf=0.82)

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Authors
Eichenbaum, H.
Affiliations
Boston University (US)
Corresponding author
Eichenbaum, Howard
Venue
Journal of Neurophysiology
Published
2017-04-01
Volume
117
Issue
4
Pages
1785-1796
ISSN
  • 0022-3077 (ISSN-L)
  • 1522-1598
OpenAlex
W2584986857
Cited by
430
References
121
Citations by year
2026: 46 · 2025: 93 · 2024: 56 · 2023: 51 · 2022: 53 · 2021: 37 · 2020: 33 · 2019: 28 · 2018: 20 · 2017: 12 · 2016: 1
FWCI
2.85
Type
journal article
Language
en
Open access
Locations
  • Journal of Neurophysiology (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
HHS | NIH | National Institute of Mental Health (NIMH) (MH051570, MH052090, MH095297)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Physical Sciences › Engineering › Automotive Engineering › Spatial Cognition and Navigation
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory Processes and Influences
Keywords
hippocampus, spatial navigation, cognitive maps, relational memory, navigational strategies, spatial memory, memory organization, hippocampal system
MeSH terms
Animals, Cognition, Hippocampus, Humans, Memory, Space Perception, Spatial Navigation

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