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Role of the fronto-parietal cortex in prospective action judgments
Prospective judgments about one’s capability to perform an action are assumed to involve mental simulation of the action. Previous studies of motor imagery suggest this simulation is supported by a large fronto-parietal network including the motor system. Experiment 1 used fMRI to assess the contrib...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8018944/ https://www.ncbi.nlm.nih.gov/pubmed/33811223 http://dx.doi.org/10.1038/s41598-021-86719-9 |
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author | Geers, Laurie Pesenti, Mauro Derosiere, Gerard Duque, Julie Dricot, Laurence Andres, Michael |
author_facet | Geers, Laurie Pesenti, Mauro Derosiere, Gerard Duque, Julie Dricot, Laurence Andres, Michael |
author_sort | Geers, Laurie |
collection | PubMed |
description | Prospective judgments about one’s capability to perform an action are assumed to involve mental simulation of the action. Previous studies of motor imagery suggest this simulation is supported by a large fronto-parietal network including the motor system. Experiment 1 used fMRI to assess the contribution of this fronto-parietal network to judgments about one’s capacity to grasp objects of different sizes between index and thumb. The neural network underlying prospective graspability judgments overlapped the fronto-parietal network involved in explicit motor imagery of grasping. However, shared areas were located in the right hemisphere, outside the motor cortex, and were also activated during perceptual length judgments, suggesting a contribution to object size estimate rather than motor simulation. Experiment 2 used TMS over the motor cortex to probe transient excitability changes undetected with fMRI. Results show that graspability judgments elicited a selective increase of excitability in the thumb and index muscles, which was maximal before the object display and intermediate during the judgment. Together, these findings suggest that prospective action judgments do not rely on the motor system to simulate the action per se but to refresh the memory of one’s maximal grip aperture and facilitate its comparison with object size in right fronto-parietal areas. |
format | Online Article Text |
id | pubmed-8018944 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-80189442021-04-07 Role of the fronto-parietal cortex in prospective action judgments Geers, Laurie Pesenti, Mauro Derosiere, Gerard Duque, Julie Dricot, Laurence Andres, Michael Sci Rep Article Prospective judgments about one’s capability to perform an action are assumed to involve mental simulation of the action. Previous studies of motor imagery suggest this simulation is supported by a large fronto-parietal network including the motor system. Experiment 1 used fMRI to assess the contribution of this fronto-parietal network to judgments about one’s capacity to grasp objects of different sizes between index and thumb. The neural network underlying prospective graspability judgments overlapped the fronto-parietal network involved in explicit motor imagery of grasping. However, shared areas were located in the right hemisphere, outside the motor cortex, and were also activated during perceptual length judgments, suggesting a contribution to object size estimate rather than motor simulation. Experiment 2 used TMS over the motor cortex to probe transient excitability changes undetected with fMRI. Results show that graspability judgments elicited a selective increase of excitability in the thumb and index muscles, which was maximal before the object display and intermediate during the judgment. Together, these findings suggest that prospective action judgments do not rely on the motor system to simulate the action per se but to refresh the memory of one’s maximal grip aperture and facilitate its comparison with object size in right fronto-parietal areas. Nature Publishing Group UK 2021-04-02 /pmc/articles/PMC8018944/ /pubmed/33811223 http://dx.doi.org/10.1038/s41598-021-86719-9 Text en © The Author(s) 2021 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Geers, Laurie Pesenti, Mauro Derosiere, Gerard Duque, Julie Dricot, Laurence Andres, Michael Role of the fronto-parietal cortex in prospective action judgments |
title | Role of the fronto-parietal cortex in prospective action judgments |
title_full | Role of the fronto-parietal cortex in prospective action judgments |
title_fullStr | Role of the fronto-parietal cortex in prospective action judgments |
title_full_unstemmed | Role of the fronto-parietal cortex in prospective action judgments |
title_short | Role of the fronto-parietal cortex in prospective action judgments |
title_sort | role of the fronto-parietal cortex in prospective action judgments |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8018944/ https://www.ncbi.nlm.nih.gov/pubmed/33811223 http://dx.doi.org/10.1038/s41598-021-86719-9 |
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