Cited by 439Neuroscience and Neuropharmacology ResearchVisual perception and processing mechanismsNeurogenesis and neuroplasticity mechanisms

Developmental Remodeling of the Retinogeniculate Synapse

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Chen, Chinfei, Regehr, Wade G.·2000·Neuron

Abstract

Anatomical rearrangement of retinogeniculate connections contributes to the refinement of synaptic circuits in the developing visual system, but the underlying changes in synaptic function are unclear. Here, we study such changes in mouse brain slices. Each geniculate cell receives a surprisingly large number of retinal inputs (>20) well after eye-specific zones are formed. All but one to three of these inputs are eliminated over a 3-week period spanning eye opening. Remaining inputs are strengthened approximately 50-fold, in part through an increase in quantal size, but primarily through an increase in the number of release sites. Changes in release probability do not contribute significantly. Thus, a redistribution of release sites from many inputs to few inputs at this late developmental stage contributes to the precise receptive fields of thalamic relay neurons.

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Crossref · 10.1016/s0896-6273(00)00166-5

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4 of 4 references verified0 citation errors · 0 not checkable

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  • The angled parasagittal brain slice preparation preserves the optic tract and dLGN.

    “This method preserves the optic tract and dLGN, and generally only one slice is obtained per animal.”
  • By P18, the majority (91%) of wild type dLGN neurons are innervated by between 1-4 inputs.

    “As previously reported18,23, we found that by P18 the majority (91%) of wild type neurons were innervated by between 1-4 inputs.”

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Authors
Chen, C., & Regehr, W. G.
Affiliations
Harvard University (US)
Corresponding author
Chen, Chinfei
Venue
Neuron
Publisher
Elsevier BV
Published
2000-12
Volume
28
Issue
3
Pages
955-966
ISSN
0896-6273 (ISSN-L)
OpenAlex
W2089178397
Cited by
439
References
4
Citations by year
2026: 9 · 2025: 18 · 2024: 19 · 2023: 19 · 2022: 15 · 2021: 17 · 2020: 12 · 2019: 19 · 2018: 20 · 2017: 22 · 2016: 16 · 2015: 20 · 2014: 25 · 2013: 19 · 2012: 18
FWCI
4.23
Type
journal article
Language
en
Open access
Locations
  • Neuron (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (5p01ns038312-05, 2k08ns002056-05)
  • National Institute of Neurological Disorders and Stroke (K08 NS02056, P01-NS-38312, R01NS032405)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Visual perception and processing mechanisms
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
Keywords
retinogeniculate synapses, synaptic refinement, quantal size, release sites, release probability, thalamocortical neurons, receptive fields, visual system development, mouse brain slices
MeSH terms
Aging, Animals, Geniculate Bodies, Nerve Fibers, Synaptic Transmission, Retina, Synapses, Visual Pathways, Excitatory Postsynaptic Potentials, Mice, In Vitro Techniques

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