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Two distinct types of remapping in primate cortical area V4
Visual neurons typically receive information from a limited portion of the retina, and such receptive fields are a key organizing principle for much of visual cortex. At the same time, there is strong evidence that receptive fields transiently shift around the time of saccades. The nature of the shi...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4740356/ https://www.ncbi.nlm.nih.gov/pubmed/26832423 http://dx.doi.org/10.1038/ncomms10402 |
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author | Neupane, Sujaya Guitton, Daniel Pack, Christopher C. |
author_facet | Neupane, Sujaya Guitton, Daniel Pack, Christopher C. |
author_sort | Neupane, Sujaya |
collection | PubMed |
description | Visual neurons typically receive information from a limited portion of the retina, and such receptive fields are a key organizing principle for much of visual cortex. At the same time, there is strong evidence that receptive fields transiently shift around the time of saccades. The nature of the shift is controversial: Previous studies have found shifts consistent with a role for perceptual constancy; other studies suggest a role in the allocation of spatial attention. Here we present evidence that both the previously documented functions exist in individual neurons in primate cortical area V4. Remapping associated with perceptual constancy occurs for saccades in all directions, while attentional shifts mainly occur for neurons with receptive fields in the same hemifield as the saccade end point. The latter are relatively sluggish and can be observed even during saccade planning. Overall these results suggest a complex interplay of visual and extraretinal influences during the execution of saccades. |
format | Online Article Text |
id | pubmed-4740356 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-47403562016-03-04 Two distinct types of remapping in primate cortical area V4 Neupane, Sujaya Guitton, Daniel Pack, Christopher C. Nat Commun Article Visual neurons typically receive information from a limited portion of the retina, and such receptive fields are a key organizing principle for much of visual cortex. At the same time, there is strong evidence that receptive fields transiently shift around the time of saccades. The nature of the shift is controversial: Previous studies have found shifts consistent with a role for perceptual constancy; other studies suggest a role in the allocation of spatial attention. Here we present evidence that both the previously documented functions exist in individual neurons in primate cortical area V4. Remapping associated with perceptual constancy occurs for saccades in all directions, while attentional shifts mainly occur for neurons with receptive fields in the same hemifield as the saccade end point. The latter are relatively sluggish and can be observed even during saccade planning. Overall these results suggest a complex interplay of visual and extraretinal influences during the execution of saccades. Nature Publishing Group 2016-02-01 /pmc/articles/PMC4740356/ /pubmed/26832423 http://dx.doi.org/10.1038/ncomms10402 Text en Copyright © 2016, Nature Publishing Group, a division of Macmillan Publishers Limited. All Rights Reserved. http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Neupane, Sujaya Guitton, Daniel Pack, Christopher C. Two distinct types of remapping in primate cortical area V4 |
title | Two distinct types of remapping in primate cortical area V4 |
title_full | Two distinct types of remapping in primate cortical area V4 |
title_fullStr | Two distinct types of remapping in primate cortical area V4 |
title_full_unstemmed | Two distinct types of remapping in primate cortical area V4 |
title_short | Two distinct types of remapping in primate cortical area V4 |
title_sort | two distinct types of remapping in primate cortical area v4 |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4740356/ https://www.ncbi.nlm.nih.gov/pubmed/26832423 http://dx.doi.org/10.1038/ncomms10402 |
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