ArticleCurrent biology : CB2023
Sensory cortical ensembles exhibit differential coupling to ripples in distinct hippocampal subregions.
Article in Current biology : CB, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Large-scale electrophysiology at single-spike resolution.Nature reviews. Neuroscience · 2026Review
- Mouse Hippocampal Sharp-Wave Ripple Dataset Curated From Public Neuropixels Datasets.Scientific data · 2025Article
- Pre-existing and emergent cortical neuronal assembly sequences during learning.bioRxiv : the preprint server for biology · 2025Article
- Ripple contributions to human memory: making the spiking content count.Nature reviews. Neuroscience · 2025Review
- Local inhibitory circuits mediate cortical reactivations and memory consolidation.Science advances · 2025Article
- Selective reactivation of value- and place-dependent information during sharp-wave ripples in the intermediate and dorsal hippocampus.Science advances · 2024Article
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Abstract
Cortical neurons activated during recent experiences often reactivate with dorsal hippocampal CA1 ripples during subsequent rest. Less is known about cortical interactions with intermediate hippocampal CA1, whose connectivity, functions, and ripple events differ from dorsal CA1. We identified three clusters of putative excitatory neurons in mouse visual cortex that are preferentially excited together with either dorsal or intermediate CA1 ripples or suppressed before both ripples. Neurons in each cluster were evenly distributed across primary and higher visual cortices and co-active even in the absence of ripples. These ensembles exhibited similar visual responses but different coupling to thalamus and pupil-indexed arousal. We observed a consistent activity sequence preceding and predicting ripples: (1) suppression of ripple-suppressed cortical neurons, (2) thalamic silence, and (3) activation of intermediate CA1-ripple-activated cortical neurons. We propose that coordinated dynamics of these ensembles relay visual experiences to distinct hippocampal subregions for incorporation into different cognitive maps.
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