Cited by 227Neural dynamics and brain functionNeuroscience and Neuropharmacology ResearchMemory and Neural Mechanisms

An embedded subnetwork of highly active neurons in the neocortex

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Yassin, Lina, Benedetti, Brett L., Jouhanneau, Jean-Sébastien, Wen, Jing A., Poulet, James F.A., Barth, Alison L.·2010·Neuron

Abstract

Video abstract Unbiased methods to assess the firing activity of individual neurons in the neocortex have revealed that a large proportion of cells fire at extremely low rates (<0.1 Hz), both in their spontaneous and evoked activity. Thus, firing in neocortical networks appears to be dominated by a small population of highly active neurons. Here, we use a fosGFP transgenic mouse to examine the properties of cells with a recent history of elevated activity. FosGFP-expressing layer 2/3 pyramidal cells fired at higher rates compared to fosGFP(-) neurons, both in vivo and in vitro. Elevated activity could be attributed to increased excitatory and decreased inhibitory drive to fosGFP(+) neurons. Paired-cell recordings indicated that fosGFP(+) neurons had a greater likelihood of being connected to each other. These findings indicate that highly active, interconnected neuronal ensembles are present in the neocortex and suggest these cells may play a role in the encoding of sensory information.

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Crossref · 10.1016/j.neuron.2010.11.029

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  • L2/3 IT CTX Baz1a likely corresponds to a subset of cortical L2/3 neurons that express IEG c-fos under basal conditions and are preferentially interconnected within the L2/3 network.

    “likely corresponds to a subset of cortical L2/3 neurons that express IEG c-fos under basal conditions and are preferentially interconnected within the L2/3 network (Yassin et al., 2010)”

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Authors
Yassin, L., Benedetti, B. L., Jouhanneau, J.-S., Wen, J. A., Poulet, J. F. A., & Barth, A. L.
Affiliations
  • Center for the Neural Basis of Cognition (US)
  • Max Delbrück Center (DE)
Corresponding author
Barth, Alison L.
Venue
Neuron
Publisher
Elsevier BV
Published
2010-12
Volume
68
Issue
6
Pages
1043-1050
ISSN
0896-6273 (ISSN-L)
OpenAlex
W2037158512
Cited by
227
References
47
Citations by year
2026: 5 · 2025: 7 · 2024: 10 · 2023: 5 · 2022: 8 · 2021: 12 · 2020: 9 · 2019: 31 · 2018: 16 · 2017: 18 · 2016: 18 · 2015: 24 · 2014: 22 · 2013: 23 · 2012: 12
FWCI
8.15
Type
journal article
Language
en
Open access
Locations
  • Neuron (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • KiltHub Repository (submittedVersion)
  • MDC Repository (Max-Delbrueck-Center for Molecular Medicine) (submittedVersion)
  • Figshare (submittedVersion, cc-by)
  • KiltHub Repository
Funders
  • National Institutes of Health (1z01da000171-01)
  • National Institute on Drug Abuse (DA 0171-88, R01DA017188)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural dynamics and brain function
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
Keywords
neocortex, layer 2/3 pyramidal cells, neuronal ensembles, spontaneous firing rate, neuronal connectivity
MeSH terms
Action Potentials, Animals, Animals, Newborn, Mice, Inbred C57BL, Mice, Transgenic, Nerve Net, Neurons, Neocortex, Mice

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