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The role of human ventral visual cortex in motion perception
Visual motion perception is fundamental to many aspects of visual perception. Visual motion perception has long been associated with the dorsal (parietal) pathway and the involvement of the ventral ‘form’ (temporal) visual pathway has not been considered critical for normal motion perception. Here,...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Oxford University Press
2013
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4017874/ https://www.ncbi.nlm.nih.gov/pubmed/23983030 http://dx.doi.org/10.1093/brain/awt214 |
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author | Gilaie-Dotan, Sharon Saygin, Ayse P. Lorenzi, Lauren J. Egan, Ryan Rees, Geraint Behrmann, Marlene |
author_facet | Gilaie-Dotan, Sharon Saygin, Ayse P. Lorenzi, Lauren J. Egan, Ryan Rees, Geraint Behrmann, Marlene |
author_sort | Gilaie-Dotan, Sharon |
collection | PubMed |
description | Visual motion perception is fundamental to many aspects of visual perception. Visual motion perception has long been associated with the dorsal (parietal) pathway and the involvement of the ventral ‘form’ (temporal) visual pathway has not been considered critical for normal motion perception. Here, we evaluated this view by examining whether circumscribed damage to ventral visual cortex impaired motion perception. The perception of motion in basic, non-form tasks (motion coherence and motion detection) and complex structure-from-motion, for a wide range of motion speeds, all centrally displayed, was assessed in five patients with a circumscribed lesion to either the right or left ventral visual pathway. Patients with a right, but not with a left, ventral visual lesion displayed widespread impairments in central motion perception even for non-form motion, for both slow and for fast speeds, and this held true independent of the integrity of areas MT/V5, V3A or parietal regions. In contrast with the traditional view in which only the dorsal visual stream is critical for motion perception, these novel findings implicate a more distributed circuit in which the integrity of the right ventral visual pathway is also necessary even for the perception of non-form motion. |
format | Online Article Text |
id | pubmed-4017874 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2013 |
publisher | Oxford University Press |
record_format | MEDLINE/PubMed |
spelling | pubmed-40178742014-05-29 The role of human ventral visual cortex in motion perception Gilaie-Dotan, Sharon Saygin, Ayse P. Lorenzi, Lauren J. Egan, Ryan Rees, Geraint Behrmann, Marlene Brain Original Articles Visual motion perception is fundamental to many aspects of visual perception. Visual motion perception has long been associated with the dorsal (parietal) pathway and the involvement of the ventral ‘form’ (temporal) visual pathway has not been considered critical for normal motion perception. Here, we evaluated this view by examining whether circumscribed damage to ventral visual cortex impaired motion perception. The perception of motion in basic, non-form tasks (motion coherence and motion detection) and complex structure-from-motion, for a wide range of motion speeds, all centrally displayed, was assessed in five patients with a circumscribed lesion to either the right or left ventral visual pathway. Patients with a right, but not with a left, ventral visual lesion displayed widespread impairments in central motion perception even for non-form motion, for both slow and for fast speeds, and this held true independent of the integrity of areas MT/V5, V3A or parietal regions. In contrast with the traditional view in which only the dorsal visual stream is critical for motion perception, these novel findings implicate a more distributed circuit in which the integrity of the right ventral visual pathway is also necessary even for the perception of non-form motion. Oxford University Press 2013-09 2013-08-26 /pmc/articles/PMC4017874/ /pubmed/23983030 http://dx.doi.org/10.1093/brain/awt214 Text en © The Author (2013). Published by Oxford University Press on behalf of the Guarantors of Brain. http://creativecommons.org/licenses/by/3.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Original Articles Gilaie-Dotan, Sharon Saygin, Ayse P. Lorenzi, Lauren J. Egan, Ryan Rees, Geraint Behrmann, Marlene The role of human ventral visual cortex in motion perception |
title | The role of human ventral visual cortex in motion perception |
title_full | The role of human ventral visual cortex in motion perception |
title_fullStr | The role of human ventral visual cortex in motion perception |
title_full_unstemmed | The role of human ventral visual cortex in motion perception |
title_short | The role of human ventral visual cortex in motion perception |
title_sort | role of human ventral visual cortex in motion perception |
topic | Original Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4017874/ https://www.ncbi.nlm.nih.gov/pubmed/23983030 http://dx.doi.org/10.1093/brain/awt214 |
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