Cited by 236Visual perception and processing mechanismsNeuroscience and Neuropharmacology ResearchMultisensory perception and integration

Gating and control of primary visual cortex by pulvinar

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Purushothaman, Gopathy, Marion, Roan, Li, Keji, Casagrande, Vivien A·2012·Nature Neuroscience

Abstract

The primary visual cortex (V1) receives its driving input from the eyes via the lateral geniculate nucleus (LGN) of the thalamus. The lateral pulvinar nucleus of the thalamus also projects to V1, but this input is not well understood. We manipulated lateral pulvinar neural activity in prosimian primates and assessed the effect on supra-granular layers of V1 that project to higher visual cortex. Reversibly inactivating lateral pulvinar prevented supra-granular V1 neurons from responding to visual stimulation. Reversible, focal excitation of lateral pulvinar receptive fields increased the visual responses in coincident V1 receptive fields fourfold and shifted partially overlapping V1 receptive fields toward the center of excitation. V1 responses to regions surrounding the excited lateral pulvinar receptive fields were suppressed. LGN responses were unaffected by these lateral pulvinar manipulations. Excitation of lateral pulvinar after LGN lesion activated supra-granular layer V1 neurons. Thus, lateral pulvinar is able to powerfully control and gate information outflow from V1.

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  • Inactivation of the lateral pulvinar suppressed responses of superficial V1 neurons to visual input, whereas excitation of pulvinar neurons increased the responsiveness of neurons in the superficial layers with overlapping receptive fields.

    “Inactivation of the lateral pulvinar suppressed responses of superficial V1 neurons to visual input, whereas excitation of the pulvinar neurons increased the responsiveness of neurons in the superficial layers with overlapping receptive fields [72].”
  • Gain control via the pulvinar-to-superficial-layer pathway has been empirically demonstrated.

    “Gain control via this pathway has been empirically demonstrated.”

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Authors
Purushothaman, G., Marion, R., Li, K., & Casagrande, V. A.
Affiliations
Vanderbilt University (US)
Venue
Nature Neuroscience
Published
2012-05-06
Volume
15
Issue
6
Pages
905-912
ISSN
  • 1097-6256 (ISSN-L)
  • 1546-1726
OpenAlex
W2107566414
Cited by
236
References
52
Citations by year
2026: 6 · 2025: 15 · 2024: 6 · 2023: 35 · 2022: 18 · 2021: 18 · 2020: 15 · 2019: 23 · 2018: 19 · 2017: 22 · 2016: 10 · 2015: 24 · 2014: 9 · 2013: 11 · 2012: 5
FWCI
8.02
Type
journal article
Language
en
Open access
Locations
  • Nature Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health
  • National Institute of Mental Health (T32MH064913)
  • National Eye Institute (T32EY07135, R01 EY01778, R01EY001778, T32EY007135, P30EY008126)
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (P30HD015052, P30 HD-15052)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Visual perception and processing mechanisms
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Multisensory perception and integration
Keywords
primary visual cortex, lateral geniculate nucleus, thalamocortical connections, receptive field modulation, prosimian primates
MeSH terms
Animals, Electrophysiology, Female, Male, Neurons, Photic Stimulation, Primates, Visual Cortex, Visual Pathways, Visual Perception, Pulvinar

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