Cited by 353Visual perception and processing mechanismsMultisensory perception and integrationMotor Control and Adaptation

Neuronal Adaptation to Visual Motion in Area MT of the Macaque

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Kohn, Adam, Movshon, J.Anthony·2003·Neuron

Abstract

The responsivity of primary sensory cortical neurons is reduced following prolonged adaptation, but such adaptation has been little studied in higher sensory areas. Adaptation to visual motion has strong perceptual effects, so we studied the effect of prolonged stimulation on neuronal responsivity in the macaque's area MT, a cortical area whose importance to visual motion perception is well established. We adapted MT neurons with sinusoidal gratings drifting in the preferred or null direction. Preferred adaptation reduced the responsiveness of MT cells, primarily by changing their contrast gain, and this effect was spatially specific within the receptive field. Null adaptation reduced the ability of null gratings to inhibit the response to a simultaneously presented preferred stimulus. While both preferred and null adaptation alter MT responses, these effects probably do not occur in MT neurons but are likely to reflect adaptation-induced changes in contrast gain earlier in the visual pathway.

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Crossref · 10.1016/s0896-6273(03)00438-0

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  • Adaptation enables high sensitivity to small changes in stimulus features over a large range of intensities and is found across sensory systems.

    “Adaptation enables high sensitivity to small changes in stimulus features over a large range of intensities, and is found across sensory systems5,17,26,105,210–216.”

    From Mechanisms underlying gain modulation in the cortex (2020) · cites this paper as [213]

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Authors
Kohn, A., & Movshon, J. A.
Affiliations
Howard Hughes Medical Institute (US)
Corresponding author
Kohn, Adam
Venue
Neuron
Publisher
Elsevier BV
Published
2003-08
Volume
39
Issue
4
Pages
681-691
ISSN
0896-6273 (ISSN-L)
OpenAlex
W2141145724
Cited by
353
References
76
Citations by year
2026: 6 · 2025: 12 · 2024: 9 · 2023: 14 · 2022: 9 · 2021: 14 · 2020: 13 · 2019: 17 · 2018: 16 · 2017: 12 · 2016: 20 · 2015: 10 · 2014: 15 · 2013: 10 · 2012: 25
FWCI
8.47
Type
journal article
Language
en
Open access
Locations
  • Neuron (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health
  • National Eye Institute (R01EY002017, EY 02017)
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 › Cognitive Neuroscience › Motor Control and Adaptation
Keywords
area MT, macaque, contrast gain, preferred direction, null directions, drifting gratings, receptive fields, motion perception
MeSH terms
Adaptation, Physiological, Animals, Macaca, Male, Motion Perception, Neurons, Photic Stimulation, Visual Cortex, Contrast Sensitivity

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