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Tactile priming modulates the activation of the fronto-parietal circuit during tactile angle match and non-match processing: an fMRI study

The repetition of a stimulus task reduces the neural activity within certain cortical regions responsible for working memory (WM) processing. Although previous evidence has shown that repeated vibrotactile stimuli reduce the activation in the ventrolateral prefrontal cortex, whether the repeated tac...

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Autores principales: Yang, Jiajia, Yu, Yinghua, Kunita, Akinori, Huang, Qiang, Wu, Jinglong, Sawamoto, Nobukatsu, Fukuyama, Hidenao
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4266023/
https://www.ncbi.nlm.nih.gov/pubmed/25566010
http://dx.doi.org/10.3389/fnhum.2014.00926
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author Yang, Jiajia
Yu, Yinghua
Kunita, Akinori
Huang, Qiang
Wu, Jinglong
Sawamoto, Nobukatsu
Fukuyama, Hidenao
author_facet Yang, Jiajia
Yu, Yinghua
Kunita, Akinori
Huang, Qiang
Wu, Jinglong
Sawamoto, Nobukatsu
Fukuyama, Hidenao
author_sort Yang, Jiajia
collection PubMed
description The repetition of a stimulus task reduces the neural activity within certain cortical regions responsible for working memory (WM) processing. Although previous evidence has shown that repeated vibrotactile stimuli reduce the activation in the ventrolateral prefrontal cortex, whether the repeated tactile spatial stimuli triggered the priming effect correlated with the same cortical region remains unclear. Therefore, we used event-related functional magnetic resonance imaging (fMRI) and a delayed match-to-sample task to investigate the contributions of the priming effect to tactile spatial WM processing. Fourteen healthy volunteers were asked to encode three tactile angle stimuli during the encoding phase and one tactile angle stimulus during the recognition phase. Then, they answered whether the last angle stimulus was presented during the encoding phase. As expected, both the Match and Non-Match tasks activated a similar cerebral network. The critical new finding was decreased brain activity in the left inferior frontal gyrus (IFG), the right posterior parietal cortex (PPC) and bilateral medial frontal gyri (mFG) for the match task compared to the Non-Match task. Therefore, we suggest that the tactile priming engaged repetition suppression mechanisms during tactile angle matching, and this process decreased the activation of the fronto-parietal circuit, including IFG, mFG and PPC.
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spelling pubmed-42660232015-01-06 Tactile priming modulates the activation of the fronto-parietal circuit during tactile angle match and non-match processing: an fMRI study Yang, Jiajia Yu, Yinghua Kunita, Akinori Huang, Qiang Wu, Jinglong Sawamoto, Nobukatsu Fukuyama, Hidenao Front Hum Neurosci Neuroscience The repetition of a stimulus task reduces the neural activity within certain cortical regions responsible for working memory (WM) processing. Although previous evidence has shown that repeated vibrotactile stimuli reduce the activation in the ventrolateral prefrontal cortex, whether the repeated tactile spatial stimuli triggered the priming effect correlated with the same cortical region remains unclear. Therefore, we used event-related functional magnetic resonance imaging (fMRI) and a delayed match-to-sample task to investigate the contributions of the priming effect to tactile spatial WM processing. Fourteen healthy volunteers were asked to encode three tactile angle stimuli during the encoding phase and one tactile angle stimulus during the recognition phase. Then, they answered whether the last angle stimulus was presented during the encoding phase. As expected, both the Match and Non-Match tasks activated a similar cerebral network. The critical new finding was decreased brain activity in the left inferior frontal gyrus (IFG), the right posterior parietal cortex (PPC) and bilateral medial frontal gyri (mFG) for the match task compared to the Non-Match task. Therefore, we suggest that the tactile priming engaged repetition suppression mechanisms during tactile angle matching, and this process decreased the activation of the fronto-parietal circuit, including IFG, mFG and PPC. Frontiers Media S.A. 2014-12-15 /pmc/articles/PMC4266023/ /pubmed/25566010 http://dx.doi.org/10.3389/fnhum.2014.00926 Text en Copyright © 2014 Yang, Yu, Kunita, Huang, Wu, Sawamoto and Fukuyama. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution and reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Neuroscience
Yang, Jiajia
Yu, Yinghua
Kunita, Akinori
Huang, Qiang
Wu, Jinglong
Sawamoto, Nobukatsu
Fukuyama, Hidenao
Tactile priming modulates the activation of the fronto-parietal circuit during tactile angle match and non-match processing: an fMRI study
title Tactile priming modulates the activation of the fronto-parietal circuit during tactile angle match and non-match processing: an fMRI study
title_full Tactile priming modulates the activation of the fronto-parietal circuit during tactile angle match and non-match processing: an fMRI study
title_fullStr Tactile priming modulates the activation of the fronto-parietal circuit during tactile angle match and non-match processing: an fMRI study
title_full_unstemmed Tactile priming modulates the activation of the fronto-parietal circuit during tactile angle match and non-match processing: an fMRI study
title_short Tactile priming modulates the activation of the fronto-parietal circuit during tactile angle match and non-match processing: an fMRI study
title_sort tactile priming modulates the activation of the fronto-parietal circuit during tactile angle match and non-match processing: an fmri study
topic Neuroscience
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4266023/
https://www.ncbi.nlm.nih.gov/pubmed/25566010
http://dx.doi.org/10.3389/fnhum.2014.00926
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