Cited by 108Memory and Neural MechanismsSpatial Cognition and NavigationNeural dynamics and brain function

Grid cell co-activity patterns during sleep reflect spatial overlap of grid fields during active behaviors

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Trettel, Sean G., Trimper, John B., Hwaun, Ernie, Fiete, Ila R., Colgin, Laura Lee·2019·Nature Neuroscience

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Abstract

Continuous-attractor network models of grid formation posit that recurrent connectivity between grid cells controls their patterns of co-activation. Grid cells from a common module exhibit stable offsets in their periodic spatial tuning curves across environments, and this may reflect recurrent connectivity or correlated sensory inputs. Here we explore whether cell–cell relationships predicted by attractor models persist during sleep states in which spatially informative sensory inputs are absent. We recorded ensembles of grid cells in superficial layers of medial entorhinal cortex during active exploratory behaviors and overnight sleep. Per grid cell pair and collectively, and across waking, rapid eye movement sleep and non-rapid eye movement sleep, we found preserved patterns of spike-time correlations that reflected the spatial tuning offsets between these grid cells during active exploration. The preservation of cell–cell relationships across waking and sleep states was not explained by theta oscillations or activity in hippocampal subregion CA1. These results indicate that recurrent connectivity within the grid cell network drives grid cell activity across behavioral states. How grid cells’ geometric firing patterns arise remains unknown. This study shows preserved grid cell co-activity patterns across sleep that reflect grid field overlap during waking, suggesting that grid firing emerges from specific connectivity patterns.

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  • There is evidence for hippocampus-independent replay in extrahippocampal sites, e.g., in superficial layers of medial entorhinal cortex and prefrontal cortex.

    “There is, however, also evi-dence for hippocampus-independent replay in extrahippocampal sites, e.g., in superficial layers of medial entorhinal cortex and in prefrontal cortex.”

    From Sleep—A brain-state serving systems memory consolidation (2023) · cites this paper as [93]

    The Discussion reports that superficial-layer medial entorhinal grid cells rarely reactivate in coordination with hippocampal place cells, and the References identify a study of replay independent of the hippocampus in those layers. For medial prefrontal cortex, however, the Discussion describes activity correlated with hippocampal activity during replay, not hippocampus-independent replay. No page numbers are provided in our copy. (LLM, conf=0.85)

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Authors
Trettel, S. G., Trimper, J. B., Hwaun, E., Fiete, I. R., & Colgin, L. L.
Affiliations
  • Brown University (US)
  • The University of Texas at Austin (US)
  • Massachusetts Institute of Technology (US)
Corresponding author
  • Trettel, Sean G.
  • Trimper, John B.
  • Colgin, Laura Lee
Venue
Nature Neuroscience
Published
2019-03-25
Volume
22
Issue
4
Pages
609-617
ISSN
  • 1097-6256 (ISSN-L)
  • 1546-1726
OpenAlex
W2951002351
Cited by
108
References
69
Citations by year
2026: 8 · 2025: 23 · 2024: 15 · 2023: 12 · 2022: 10 · 2021: 12 · 2020: 12 · 2019: 11 · 2018: 4 · 2017: 1
FWCI
6.54
Type
journal article
Language
en
Open access
Licence
Locations
  • Nature Neuroscience (publishedVersion)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Science Foundation (1453756, CAREER)
  • Howard Hughes Medical Institute
  • Simons Foundation
  • Whitehall Foundation
  • National Institutes of Health
  • Office of Naval Research (N00014, N00014-14-1-0322)
  • National Institute of Mental Health (T32MH106454)
  • National Institute on Drug Abuse (T32DA018926)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Physical Sciences › Engineering › Automotive Engineering › Spatial Cognition and Navigation
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural dynamics and brain function
Keywords
grid cells, sleep, continuous attractor networks, recurrent connectivity, medial entorhinal cortex, REM sleep, NREM sleep, theta oscillations, hippocampal CA1, spatial navigation
MeSH terms
Grid Cells, Action Potentials, Animals, Exploratory Behavior, Male, Models, Neurological, Motor Activity, Sleep, Entorhinal Cortex, Rats, Long-Evans, CA1 Region, Hippocampal, Spatial Processing

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