Role of the fronto-parietal cortex in prospective action judgments

Abstract 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 th...

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Autores principales:	Laurie Geers, Mauro Pesenti, Gerard Derosiere, Julie Duque, Laurence Dricot, Michael Andres
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/12f5875bbf904f93ac076ea4e85073fc
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spelling	oai:doaj.org-article:12f5875bbf904f93ac076ea4e85073fc2021-12-02T18:17:54ZRole of the fronto-parietal cortex in prospective action judgments10.1038/s41598-021-86719-92045-2322https://doaj.org/article/12f5875bbf904f93ac076ea4e85073fc2021-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-86719-9https://doaj.org/toc/2045-2322Abstract 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.Laurie GeersMauro PesentiGerard DerosiereJulie DuqueLaurence DricotMichael AndresNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-15 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Laurie Geers Mauro Pesenti Gerard Derosiere Julie Duque Laurence Dricot Michael Andres Role of the fronto-parietal cortex in prospective action judgments
description	Abstract 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	article
author	Laurie Geers Mauro Pesenti Gerard Derosiere Julie Duque Laurence Dricot Michael Andres
author_facet	Laurie Geers Mauro Pesenti Gerard Derosiere Julie Duque Laurence Dricot Michael Andres
author_sort	Laurie Geers
title	Role of the fronto-parietal cortex in prospective action judgments
title_short	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_sort	role of the fronto-parietal cortex in prospective action judgments
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/12f5875bbf904f93ac076ea4e85073fc
work_keys_str_mv	AT lauriegeers roleofthefrontoparietalcortexinprospectiveactionjudgments AT mauropesenti roleofthefrontoparietalcortexinprospectiveactionjudgments AT gerardderosiere roleofthefrontoparietalcortexinprospectiveactionjudgments AT julieduque roleofthefrontoparietalcortexinprospectiveactionjudgments AT laurencedricot roleofthefrontoparietalcortexinprospectiveactionjudgments AT michaelandres roleofthefrontoparietalcortexinprospectiveactionjudgments
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Role of the fronto-parietal cortex in prospective action judgments

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