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Updated: Dec 13, 2025

Monocular Visual Deprivation and Ocular Dominance Plasticity Measurement in the Mouse Primary Visual Cortex
Published on: February 8, 2020
NMDAR-Dependent Emergence of Behavioral Representation in Primary Visual Cortex
Alicja Puścian1, Hadas Benisty2, Michael J Higley2
1Department of Neuroscience, Kavli Institute of Neuroscience, Yale University School of Medicine, New Haven, CT 06510, USA; Nencki-EMBL Partnership for Neural Plasticity and Brain Disorders - BRAINCITY, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Pasteur 3 Street, 02-093 Warsaw, Poland.
Primary visual cortex (V1) neurons develop accurate behavioral representations during learning, not inherent to V1. This plasticity requires NMDA-type glutamate receptors for visual task performance.
Area of Science:
- Neuroscience
- Systems Neuroscience
- Computational Neuroscience
Background:
- Neocortical sensory areas are traditionally viewed as stable processors of external stimuli.
- However, cortical networks possess functional plasticity, adapting output based on behavioral needs.
Purpose of the Study:
- To investigate how primary visual cortex (V1) dynamically represents task-relevant information during learning.
- To explore the cellular mechanisms underlying experience-dependent plasticity in V1.
Main Methods:
- Longitudinal two-photon imaging of V1 activity in mice performing a conditioned eyeblink task.
- Analysis of neuronal activity to identify representations of visual input and behavioral output.
Main Results:
- All V1 neurons stably encoded visual input.
- Pyramidal cells and parvalbumin-expressing interneurons showed emergent, accurate behavioral representations during learning.
- This plasticity was dependent on cell-autonomous NMDA-type glutamate receptor expression.
Conclusions:
- Accurate encoding of behavioral output is not innate to V1 but develops through learning.
- Functional plasticity in V1 supports visual task performance by generating performance-predictive activity.
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