Cited by 412Visual perception and processing mechanismsNeuroscience and Neuropharmacology ResearchNeurogenesis and neuroplasticity mechanisms

The DOI matches its Crossref record; 47 of the 47 references it cites were found in a registry or an index.

A disinhibitory microcircuit initiates critical-period plasticity in the visual cortex

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Abstract

Early sensory experience instructs the maturation of neural circuitry in the cortex. This has been studied extensively in the primary visual cortex, in which loss of vision to one eye permanently degrades cortical responsiveness to that eye, a phenomenon known as ocular dominance plasticity (ODP). Cortical inhibition mediates this process, but the precise role of specific classes of inhibitory neurons in ODP is controversial. Here we report that evoked firing rates of binocular excitatory neurons in the primary visual cortex immediately drop by half when vision is restricted to one eye, but gradually return to normal over the following twenty-four hours, despite the fact that vision remains restricted to one eye. This restoration of binocular-like excitatory firing rates after monocular deprivation results from a rapid, although transient, reduction in the firing rates of fast-spiking, parvalbumin-positive (PV) interneurons, which in turn can be attributed to a decrease in local excitatory circuit input onto PV interneurons. This reduction in PV-cell-evoked responses after monocular lid suture is restricted to the critical period for ODP and appears to be necessary for subsequent shifts in excitatory ODP. Pharmacologically enhancing inhibition at the time of sight deprivation blocks ODP and, conversely, pharmacogenetic reduction of PV cell firing rates can extend the critical period for ODP. These findings define the microcircuit changes initiating competitive plasticity during critical periods of cortical development. Moreover, they show that the restoration of evoked firing rates of layer 2/3 pyramidal neurons by PV-specific disinhibition is a key step in the progression of ODP.

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Metadata

Authors
Kuhlman, S. J., Olivas, N. D., Tring, E., Ikrar, T., Xu, X., & Trachtenberg, J. T.
Affiliations
  • University of California, Los Angeles (US)
  • University of California, Irvine (US)
Corresponding author
  • Xu, Xiangmin
  • Trachtenberg, Joshua T.
Venue
Nature
Published
2013-08-25
Volume
501
Issue
7468
Pages
543-546
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W2065582606
Cited by
412
References
47
Citations by year
2026: 12 · 2025: 28 · 2024: 19 · 2023: 31 · 2022: 25 · 2021: 38 · 2020: 44 · 2019: 38 · 2018: 35 · 2017: 42 · 2016: 31 · 2015: 33 · 2014: 30 · 2013: 6
FWCI
17.95
Type
journal article
Language
en
Open access
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
Funders
  • National Institute on Drug Abuse (R00DA023700)
  • National Eye Institute (EY016052, R01EY016052, R01EY023871)
  • National Institute of Neurological Disorders and Stroke (R01NS078434, NS078434)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Visual perception and processing mechanisms
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
Keywords
ocular dominance plasticity, parvalbumin interneurons, critical period, primary visual cortex, monocular deprivation, cortical inhibition, disinhibition, fast-spiking interneurons, sensory deprivation, inhibitory interneurons, eye development
MeSH terms
Animals, Critical Period, Psychological, Female, Interneurons, Lasers, Male, Neural Inhibition, Neuronal Plasticity, Parvalbumins, Photic Stimulation, Sensory Deprivation, Visual Cortex, Vision, Binocular, Vision, Monocular, Dominance, Ocular, Mice

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