Cited by 92Visual perception and processing mechanismsNeurogenesis and neuroplasticity mechanismsNeuroscience and Neuropharmacology Research

A precritical period for plasticity in visual cortex

Feller, Marla B, Scanziani, Massimo·2005·Current Opinion in Neurobiology

Abstract

One of the seminal discoveries in developmental neuroscience is that altering visual experience through monocular deprivation can alter both the physiological and the anatomical representation of the two eyes, called ocular dominance columns, in primary visual cortex. This rearrangement is restricted to a critical period that starts a few days or weeks after vision is established and ends before adulthood. In contrast to the original hypothesis proposed by Hubel and Wiesel, ocular dominance columns are already substantially formed before the onset of the critical period. Indeed, before the critical period there is a period of ocular dominance column formation during which there is robust spontaneous activity and visual experience. Recent findings raise important questions about whether activity guides ocular dominance column formation in this 'precritical period'. One developmental event that marks the passage from the precritical period to the critical period is the activation of a GABAergic circuit. How these events trigger the transition from the precritical to critical period is not known.

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Crossref · 10.1016/j.conb.2005.01.012

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Authors
Feller, M. B., & Scanziani, M.
Affiliations
University of California San Diego (US)
Corresponding author
  • Feller, Marla B
  • Scanziani, Massimo
Venue
Current Opinion in Neurobiology
Publisher
Elsevier BV
Published
2005-02
Volume
15
Issue
1
Pages
94-100
ISSN
0959-4388 (ISSN-L)
OpenAlex
W2112166106
Cited by
92
References
65
Citations by year
2025: 1 · 2024: 2 · 2023: 6 · 2022: 3 · 2021: 2 · 2020: 1 · 2019: 1 · 2017: 3 · 2016: 3 · 2015: 8 · 2014: 5 · 2013: 7 · 2012: 3
FWCI
0.75
Type
journal article
Language
en
Open access
closed
Locations
  • Current Opinion in Neurobiology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • McKnight Foundation
  • National Institute of Mental Health (MH 70058, MH71401, R01MH071401, R01MH070058)
  • National Institute of Neurological Disorders and Stroke (NS13528-01A1)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Visual perception and processing mechanisms
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
Keywords
critical period, primary visual cortex, ocular dominance columns, monocular deprivation, spontaneous activity, visual experience, GABAergic circuits, cortical plasticity, visual development
MeSH terms
Animals, Humans, Neuronal Plasticity, Visual Cortex, Dominance, Ocular

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