ArticleCell2024
Barcoding of episodic memories in the hippocampus of a food-caching bird.
Article in Cell, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.
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Who cites it
32 citing papers in PubMed, 70 citations in OpenAlex.
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- Homologous cell type markers highlight subdivisions of the domestic chick hippocampal formation.Scientific reports · 2026Article
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- Dual computational systems in the development and evolution of mammalian brains.Science advances · 2026Article
- Lightning Pose 3D: an uncertainty-aware framework for data-efficient multi-view animal pose estimation.bioRxiv : the preprint server for biology · 2026Article
- Barcode activity in a recurrent network model of the hippocampus enables efficient memory binding.eLife · 2026Article
- Learning neural dynamics through instructive signals.bioRxiv : the preprint server for biology · 2025Article
- Effective computations for hippocampal place cell phenomena in sparse untrained random networks.bioRxiv : the preprint server for biology · 2025Article
- Modelling of What-Where-When Everyday Memories in Rats.The European journal of neuroscience · 2025Article
- Barcode activity in a recurrent network model of the hippocampus enables efficient memory binding.bioRxiv : the preprint server for biology · 2025Article
- Hippocampal LFP Responses during Pigeon Homing Flight in Outdoors.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025Article
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- Responses of coal tits (Periparus ater) to aversive food: insights into hoarding motivation and memory.Animal cognition · 2025Article
- Cholinergic modulation of neural networks supports sequential and complementary roles for NREM and REM states in memory consolidation.PLoS computational biology · 2025Article
- Cognitive control of memory in a food-storing and a non-storing bird species.Animal cognition · 2025Article
- DREDge: robust motion correction for high-density extracellular recordings across species.Nature methods · 2025Article
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4 authors at 1 institution in 1 country.
Funding
Abstract
The hippocampus is critical for episodic memory. Although hippocampal activity represents place and other behaviorally relevant variables, it is unclear how it encodes numerous memories of specific events in life. To study episodic coding, we leveraged the specialized behavior of chickadees-food-caching birds that form memories at well-defined moments in time whenever they cache food for subsequent retrieval. Our recordings during caching revealed very sparse, transient barcode-like patterns of firing across hippocampal neurons. Each "barcode" uniquely represented a caching event and transiently reactivated during the retrieval of that specific cache. Barcodes co-occurred with the conventional activity of place cells but were uncorrelated even for nearby cache locations that had similar place codes. We propose that animals recall episodic memories by reactivating hippocampal barcodes. Similarly to computer hash codes, these patterns assign unique identifiers to different events and could be a mechanism for rapid formation and storage of many non-interfering memories.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.