Cited by 249Visual perception and processing mechanismsMultisensory perception and integrationNeuroscience and Neuropharmacology Research

Locomotion controls spatial integration in mouse visual cortex

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Ayaz, Aslı, Saleem, Aman B., Schölvinck, Marieke L., Carandini, Matteo·2013·Current Biology

Abstract

Growing evidence indicates that responses in sensory cortex are modulated by factors beyond direct sensory stimulation. In primary visual cortex (V1), for instance, responses increase with locomotion. Here we show that this increase is accompanied by a profound change in spatial integration. We recorded from V1 neurons in head-fixed mice placed on a spherical treadmill. We characterized spatial integration and found that the responses of most neurons were suppressed by large stimuli. As in primates, this surround suppression increased with stimulus contrast. These effects were captured by a divisive normalization model, where the numerator originates from a central region driving the neuron and the denominator originates from a larger suppressive field. We then studied the effects of locomotion and found that it markedly reduced surround suppression, allowing V1 neurons to integrate over larger regions of visual space. Locomotion had two main effects: it increased spontaneous activity, and it weakened the suppressive signals mediating normalization, relative to the driving signals. We conclude that a fundamental aspect of visual processing, spatial integration, is controlled by an apparently unrelated factor, locomotion. This control might operate through the mechanisms that are in place to deliver surround suppression.

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Crossref · 10.1016/j.cub.2013.04.012

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  • Effects of locomotion on spontaneous discharge rates of presumed pyramidal neurons in other layers are more diverse.

    “However, the effects of locomotion on the spontaneous discharge rates of presumed pyramidal neurons recorded in other layers is more diverse”

    From Waking state: rapid variations modulate neural and behavioral responses (2015) · cites this paper as Ayaz et al., 2013

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Authors
Ayaz, A., Saleem, A. B., Schölvinck, M. L., & Carandini, M.
Affiliations
University College London (GB)
Corresponding author
Ayaz, Aslı
Venue
Current Biology
Publisher
Elsevier BV
Published
2013-05
Volume
23
Issue
10
Pages
890-894
ISSN
0960-9822 (ISSN-L)
OpenAlex
W2057290285
Cited by
249
References
27
Citations by year
2026: 8 · 2025: 17 · 2024: 28 · 2023: 21 · 2022: 22 · 2021: 17 · 2020: 19 · 2019: 21 · 2018: 28 · 2017: 20 · 2016: 14 · 2015: 16 · 2014: 10 · 2013: 8
FWCI
8.78
Type
journal article
Language
en
Open access
Locations
  • Current Biology (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • UCL Discovery (University College London) (submittedVersion)
Funders
  • European Research Council
  • Wellcome Trust
  • Medical Research Council
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Visual perception and processing mechanisms
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Multisensory perception and integration
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
Keywords
locomotion, primary visual cortex, spatial integration, surround suppression, divisive normalization, spontaneous activity, stimulus contrast, mouse visual cortex
MeSH terms
Animals, Locomotion, Space Perception, Visual Cortex, Mice

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