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Visual area V5/hMT+ contributes to perception of tactile motion direction: a TMS study
Human imaging studies have reported activations associated with tactile motion perception in visual motion area V5/hMT+, primary somatosensory cortex (SI) and posterior parietal cortex (PPC; Brodmann areas 7/40). However, such studies cannot establish whether these areas are causally involved in tac...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5247673/ https://www.ncbi.nlm.nih.gov/pubmed/28106123 http://dx.doi.org/10.1038/srep40937 |
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author | Amemiya, Tomohiro Beck, Brianna Walsh, Vincent Gomi, Hiroaki Haggard, Patrick |
author_facet | Amemiya, Tomohiro Beck, Brianna Walsh, Vincent Gomi, Hiroaki Haggard, Patrick |
author_sort | Amemiya, Tomohiro |
collection | PubMed |
description | Human imaging studies have reported activations associated with tactile motion perception in visual motion area V5/hMT+, primary somatosensory cortex (SI) and posterior parietal cortex (PPC; Brodmann areas 7/40). However, such studies cannot establish whether these areas are causally involved in tactile motion perception. We delivered double-pulse transcranial magnetic stimulation (TMS) while moving a single tactile point across the fingertip, and used signal detection theory to quantify perceptual sensitivity to motion direction. TMS over both SI and V5/hMT+, but not the PPC site, significantly reduced tactile direction discrimination. Our results show that V5/hMT+ plays a causal role in tactile direction processing, and strengthen the case for V5/hMT+ serving multimodal motion perception. Further, our findings are consistent with a serial model of cortical tactile processing, in which higher-order perceptual processing depends upon information received from SI. By contrast, our results do not provide clear evidence that the PPC site we targeted (Brodmann areas 7/40) contributes to tactile direction perception. |
format | Online Article Text |
id | pubmed-5247673 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-52476732017-01-23 Visual area V5/hMT+ contributes to perception of tactile motion direction: a TMS study Amemiya, Tomohiro Beck, Brianna Walsh, Vincent Gomi, Hiroaki Haggard, Patrick Sci Rep Article Human imaging studies have reported activations associated with tactile motion perception in visual motion area V5/hMT+, primary somatosensory cortex (SI) and posterior parietal cortex (PPC; Brodmann areas 7/40). However, such studies cannot establish whether these areas are causally involved in tactile motion perception. We delivered double-pulse transcranial magnetic stimulation (TMS) while moving a single tactile point across the fingertip, and used signal detection theory to quantify perceptual sensitivity to motion direction. TMS over both SI and V5/hMT+, but not the PPC site, significantly reduced tactile direction discrimination. Our results show that V5/hMT+ plays a causal role in tactile direction processing, and strengthen the case for V5/hMT+ serving multimodal motion perception. Further, our findings are consistent with a serial model of cortical tactile processing, in which higher-order perceptual processing depends upon information received from SI. By contrast, our results do not provide clear evidence that the PPC site we targeted (Brodmann areas 7/40) contributes to tactile direction perception. Nature Publishing Group 2017-01-20 /pmc/articles/PMC5247673/ /pubmed/28106123 http://dx.doi.org/10.1038/srep40937 Text en Copyright © 2017, The Author(s) 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 Amemiya, Tomohiro Beck, Brianna Walsh, Vincent Gomi, Hiroaki Haggard, Patrick Visual area V5/hMT+ contributes to perception of tactile motion direction: a TMS study |
title | Visual area V5/hMT+ contributes to perception of tactile motion direction: a TMS study |
title_full | Visual area V5/hMT+ contributes to perception of tactile motion direction: a TMS study |
title_fullStr | Visual area V5/hMT+ contributes to perception of tactile motion direction: a TMS study |
title_full_unstemmed | Visual area V5/hMT+ contributes to perception of tactile motion direction: a TMS study |
title_short | Visual area V5/hMT+ contributes to perception of tactile motion direction: a TMS study |
title_sort | visual area v5/hmt+ contributes to perception of tactile motion direction: a tms study |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5247673/ https://www.ncbi.nlm.nih.gov/pubmed/28106123 http://dx.doi.org/10.1038/srep40937 |
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