The DOI matches its Crossref record; 206 of the 209 references it cites were found in a registry or an index.
Theta rhythm of navigation: Link between path integration and landmark navigation, episodic and semantic memory
Abstract
Five key topics have been reverberating in hippocampal‐entorhinal cortex (EC) research over the past five decades: episodic and semantic memory, path integration (“dead reckoning”) and landmark (“map”) navigation, and theta oscillation. We suggest that the systematic relations between single cell discharge and the activity of neuronal ensembles reflected in local field theta oscillations provide a useful insight into the relationship among these terms. In rats trained to run in direction‐guided (1‐dimensional) tasks, hippocampal cell assemblies discharge sequentially, with different assemblies active on opposite runs, i.e., place cells are unidirectional. Such tasks do not require map representation and are formally identical with learning sequentially occurring items in an episode. Hebbian plasticity, acting within the temporal window of the theta cycle, converts the travel distances into synaptic strengths between the sequentially activated and unidirectionally connected assemblies. In contrast, place representations by hippocampal neurons in 2‐dimensional environments are typically omnidirectional, characteristic of a map. Generation of a map requires exploration, essentially a dead reckoning behavior. We suggest that omnidirectional navigation through the same places (junctions) during exploration gives rise to omnidirectional place cells and, consequently, maps free of temporal context. Analogously, multiple crossings of common junction(s) of episodes convert the common junction(s) into context‐free or semantic memory. Theta oscillation can hence be conceived as the navigation rhythm through both physical and mnemonic space, facilitating the formation of maps and episodic/semantic memories. © 2005 Wiley‐Liss, Inc.
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“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 [4]
In the citing paper
“These neurons encode the animal’s position in an environment1 and, more generally, events of episodic experience2–4 and have been causally linked to memory functions5–7.”
From Place and behavioral modulation of hippocampal neurons during immobility (2026) · cites this paper as [4]
Citations
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Cited by
Sorted by citations
Hippocampal sharp wave-ripple: A cognitive biomarker for episodic memory and planning
Buzsáki, G. (2015) · Hippocampus · doi:10.1002/hipo.22488 · Cited by 1,759
Self-citationMemory, navigation and theta rhythm in the hippocampal-entorhinal system
Buzsáki, G., & Moser, E. I. (2013) · Nature Neuroscience · doi:10.1038/nn.3304 · Cited by 1,847
Self-citationEntrainment of Neuronal Oscillations as a Mechanism of Attentional Selection
Lakatos, P., Karmos, G., Mehta, A. D., Ulbert, I., & Schroeder, C. E. (2008) · Science · doi:10.1126/science.1154735 · Cited by 1,719
Motivation, emotion, and their inhibitory control mirrored in brain oscillations
Knyazev, G. G. (2006) · Neuroscience & Biobehavioral Reviews · doi:10.1016/j.neubiorev.2006.10.004 · Cited by 1,034
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Metadata
- Authors
- Buzsáki, G.
- Affiliations
- Rutgers, The State University of New Jersey (US)
- Corresponding author
- Buzsáki, György
- ORCID
- Buzsáki, György
- Venue
- Hippocampus
- Publisher
- Wiley
- Published
- 2005-01
- Volume
- 15
- Issue
- 7
- Pages
- 827-840
- ISSN
- 1050-9631 (ISSN-L)
- 1098-1063
- OpenAlex
- W2084694708
- Cited by
- 872
- References
- 209
- Citations by year
- 2026: 23 · 2025: 44 · 2024: 67 · 2023: 38 · 2022: 47 · 2021: 36 · 2020: 39 · 2019: 58 · 2018: 47 · 2017: 50 · 2016: 38 · 2015: 44 · 2014: 46 · 2013: 49 · 2012: 39
- FWCI
- 2.31
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Hippocampus (publishedVersion)
- PubMed (publishedVersion)
- Funders
- National Institute of Mental Health (R01MH054671, MH54671)
- National Institute of Neurological Disorders and Stroke (NS 43157, R01NS043157, R01NS034994, NS-34994)
- Topics
- Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
- Life Sciences › Neuroscience › Cognitive Neuroscience › Neural dynamics and brain function
- Social Sciences › Psychology › Experimental and Cognitive Psychology › Spatial Cognition and Navigation
- Keywords
- theta oscillations, path integration, dead reckoning, landmark navigation, map representation, place cells, episodic memory, semantic memory, entorhinal cortex, Hebbian plasticity, neuronal ensembles, exploration
- MeSH terms
- Animals, Biological Clocks, Hippocampus, Humans, Memory, Neural Pathways, Synaptic Transmission, Neuronal Plasticity, Orientation, Space Perception, Theta Rhythm
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