Preplay of future place cell sequences by hippocampal cellular assemblies
Open accessAbstract
During spatial exploration, hippocampal neurons show a sequential firing pattern in which individual neurons fire specifically at particular locations along the animal's trajectory (place cells). According to the dominant model of hippocampal cell assembly activity, place cell firing order is established for the first time during exploration, to encode the spatial experience, and is subsequently replayed during rest or slow-wave sleep for consolidation of the encoded experience. Here we report that temporal sequences of firing of place cells expressed during a novel spatial experience occurred on a significant number of occasions during the resting or sleeping period preceding the experience. This phenomenon, which is called preplay, occurred in disjunction with sequences of replay of a familiar experience. These results suggest that internal neuronal dynamics during resting or sleep organize hippocampal cellular assemblies into temporal sequences that contribute to the encoding of a related novel experience occurring in the future.
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More recent evidence concerning regions critical for image generation points specifically to part of the left fusiform gyrus, which may be well positioned to mediate interactions between language areas and high-level visual areas.
“More recent evidence concerning regions critical for image generation points specifically to part of the left fusiform gyrus, which may be well positioned to mediate interactions between language areas and high-level visual areas305,306.”
From Consciousness and sleep (2024) · cites this paper as [306]
The paper’s Abstract describes place-cell sequences recorded in mouse hippocampal CA1, not regions involved in image generation. Searches for the left fusiform gyrus and interactions between language and high-level visual areas found no passage addressing the claim; the indexed copy provides no page numbers. (LLM, conf=0.78)
Experimental — accuracy not yet measuredIn some adult zebra finches, RA burst activity during sleep appeared more similar to singing after sleep than before sleep, suggesting a preplay that creates new song features.
“Interestingly, RA burst activity during sleep in some of these cases appeared to be more similar to that observed during singing after sleep than before sleep, suggesting a kind of”
From About Sleep's Role in Memory (2013) · cites this paper as [323]
The Abstract and Methods Summary describe preplay of hippocampal place-cell sequences in mice, not RA activity or song in zebra finches. Searches for zebra finch sleep bursts, singing before and after sleep, and new song features found no passage addressing the attributed observation. (LLM, conf=0.76)
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- Authors
- Dragoi, G., & Tonegawa, S.
- Affiliations
- Massachusetts Institute of Technology (US)
- Corresponding author
- Dragoi, George
- Tonegawa, Susumu
- ORCID
- Tonegawa, Susumu
- Venue
- Nature
- Published
- 2010-12-22
- Volume
- 469
- Issue
- 7330
- Pages
- 397-401
- ISSN
- 0028-0836 (ISSN-L)
- 1476-4687
- PMC
- PMC3104398
- OpenAlex
- W2060671266
- Cited by
- 716
- References
- 32
- Citations by year
- 2026: 43 · 2025: 53 · 2024: 75 · 2023: 67 · 2022: 60 · 2021: 34 · 2020: 37 · 2019: 58 · 2018: 35 · 2017: 34 · 2016: 35 · 2015: 39 · 2014: 51 · 2013: 50 · 2012: 24
- FWCI
- 18.16
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Licence
- www.springer.com/tdm (tdm)
- Locations
- Nature (publishedVersion)
- PubMed (publishedVersion)
- PubMed Central (acceptedVersion)
- DSpace@MIT (Massachusetts Institute of Technology) (submittedVersion, cc-by-nc-sa)
- RePEc: Research Papers in Economics (submittedVersion)
- Funders
- Howard Hughes Medical Institute
- National Institutes of Health
- National Institute of Mental Health (P50MH058880, R01MH078821)
- Topics
- Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
- Life Sciences › Neuroscience › Cognitive Neuroscience › Sleep and Wakefulness Research
- Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
- Keywords
- place cells, hippocampus, spatial memory, memory consolidation, sleep, resting state, firing sequences, memory encoding
- MeSH terms
- Action Potentials, Animals, Bayes Theorem, Eating, Food, Hippocampus, Memory, Mice, Inbred C57BL, Models, Neurological, Neurons, Orientation, Rest, Sleep, Space Perception, Time Factors, Mice
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