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Related Experiment Video

Updated: Mar 31, 2026

Monocular Visual Deprivation and Ocular Dominance Plasticity Measurement in the Mouse Primary Visual Cortex

Monocular Visual Deprivation and Ocular Dominance Plasticity Measurement in the Mouse Primary Visual Cortex

Published on: February 8, 2020

Spatial Correlations in Natural Scenes Modulate Response Reliability in Mouse Visual Cortex.

Rajeev V Rikhye¹, Mriganka Sur²

¹Department of Brain and Cognitive Sciences, Picower Institute for Learning and Memory, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139.

The Journal of Neuroscience : the Official Journal of the Society for Neuroscience

|October 30, 2015

Summary

This summary is machine-generated.

Natural scenes enhance reliable neural coding in the primary visual cortex (V1) by organizing neuronal ensembles. Removing spatial correlations disrupts this process, leading to less reliable visual information processing.

Keywords:

calcium imaging correlated variability ensembles natural scene statistics primary visual cortex reliable coding

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Area of Science:

Neuroscience
Computational Neuroscience
Visual System

Background:

Neuronal variability in the primary visual cortex (V1) limits information encoding.
Natural scenes, unlike simple stimuli, elicit more reliable neuronal responses.
The specific stimulus statistics driving this reliable coding and the underlying neural mechanisms remain unclear.

Purpose of the Study:

To investigate the role of spatial correlations in natural scenes in modulating reliable neural coding in V1.
To understand how these spatial statistics influence neural ensemble activity and information processing.

Main Methods:

Developed a novel noise-masking technique to manipulate spatial correlations in natural movies while preserving edge structure.
Utilized high-speed two-photon calcium imaging in vivo to record neuronal activity in mouse V1.
Analyzed single-neuron and population-level responses, including between-neuron correlations.

Main Results:

Removing spatial correlations from natural scenes significantly decreased response reliability at both single-neuron and population levels.
This decrease in reliability was associated with a reorganization of between-neuron correlations.
Reduced spatial correlations led to decreased activation of strongly correlated neuronal ensembles, resulting in an unreliable neural code.

Conclusions:

Spatial correlations in natural scenes are crucial for reliable visual information coding in V1.
The coordinated activation of specific neuronal ensembles, driven by spatial correlations, underlies accurate natural scene processing.
Findings suggest an ensemble-specific normalization mechanism contributes to reliable coding in the visual cortex.