Cited by 806Memory and Neural MechanismsNeural dynamics and brain functionNeurogenesis and neuroplasticity mechanisms

The DOI matches its Crossref record; 53 of the 53 references it cites were found in a registry or an index.

Hippocampal Replay of Extended Experience

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Abstract

During pauses in exploration, ensembles of place cells in the rat hippocampus re-express firing sequences corresponding to recent spatial experience. Such "replay" co-occurs with ripple events: short-lasting (approximately 50-120 ms), high-frequency (approximately 200 Hz) oscillations that are associated with increased hippocampal-cortical communication. In previous studies, rats exploring small environments showed replay anchored to the rat's current location and compressed in time into a single ripple event. Here, we show, using a neural decoding approach, that firing sequences corresponding to long runs through a large environment are replayed with high fidelity and that such replay can begin at remote locations on the track. Extended replay proceeds at a characteristic virtual speed of approximately 8 m/s and remains coherent across trains of ripple events. These results suggest that extended replay is composed of chains of shorter subsequences, which may reflect a strategy for the storage and flexible expression of memories of prolonged experience.

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Crossref · 10.1016/j.neuron.2009.07.027

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Metadata

Authors
Davidson, T. J., Kloosterman, F., & Wilson, M. A.
Affiliations
Massachusetts Institute of Technology (US)
Corresponding author
Kloosterman, Fabian
Venue
Neuron
Publisher
Elsevier BV
Published
2009-08
Volume
63
Issue
4
Pages
497-507
ISSN
0896-6273 (ISSN-L)
OpenAlex
W2079161053
Cited by
806
References
53
Citations by year
2026: 41 · 2025: 54 · 2024: 68 · 2023: 57 · 2022: 56 · 2021: 65 · 2020: 49 · 2019: 72 · 2018: 42 · 2017: 41 · 2016: 49 · 2015: 42 · 2014: 57 · 2013: 40 · 2012: 26
FWCI
11.45
Type
journal article
Language
en
Open access
Locations
  • Neuron (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • DSpace@MIT (Massachusetts Institute of Technology) (submittedVersion, cc-by-nc)
  • Lirias (KU Leuven) (submittedVersion)
Funders
National Institutes of Health (MH061976)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural dynamics and brain function
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
Keywords
hippocampal replay, place cells, spatial memory, neural decoding, memory storage
MeSH terms
Animals, Exploratory Behavior, Hippocampus, Learning, Male, Spatial Behavior, Time Factors, Rats, Long-Evans, Rats

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