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Related Experiment Video

Updated: Feb 26, 2026

Monocular Visual Deprivation and Ocular Dominance Plasticity Measurement in the Mouse Primary Visual Cortex
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Monocular deprivation induces dendritic spine elimination in the developing mouse visual cortex.

Yanmei Zhou1,2, Baoling Lai1, Wen-Biao Gan3,4

  • 1Drug Discovery Center, Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen, 518055, China.

Scientific Reports
|July 12, 2017
PubMed
Summary

Monocular deprivation (MD) causes synapse loss in adolescent mice, while binocular deprivation (BD) does not. This MD-induced synapse loss persists even after vision recovery, impacting developing brain circuits.

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Area of Science:

  • Neuroscience
  • Developmental Neuroscience
  • Synaptic Plasticity

Background:

  • Visual deprivation significantly impacts developing visual cortex neuron responsiveness.
  • The precise effects of visual deprivation on synaptic connectivity are not fully understood.
  • Layer 5 pyramidal neurons are crucial for visual information processing.

Purpose of the Study:

  • To investigate the impact of monocular deprivation (MD) and binocular deprivation (BD) on dendritic spine remodeling.
  • To examine the effects of visual deprivation and subsequent recovery on synaptic connectivity.
  • To understand the differential effects of MD and BD on the developing visual cortex.

Main Methods:

  • Utilized transcranial two-photon microscopy in adolescent mice.
  • Assessed dendritic spine remodeling in layer 5 pyramidal neurons of the primary visual cortex.
  • Compared effects of 3-day MD, 3-day BD, and subsequent binocular recovery periods.

Main Results:

  • Monocular deprivation (MD) significantly increased dendritic spine elimination in the visual cortex over 3 days.
  • Binocular deprivation (BD) did not increase dendritic spine elimination.
  • MD-induced spine elimination persisted during subsequent binocular recovery; spine size changes were observed and tended to reverse.
  • Differential effects of MD and BD on synaptic connectivity were observed.

Conclusions:

  • Monocular deprivation, not binocular deprivation, leads to persistent synapse loss in the developing visual cortex.
  • Visual deprivation differentially impacts synaptic connectivity, with MD having a more profound and lasting effect.
  • Findings highlight the critical role of visual experience in shaping synaptic structure during development.