Getting a tool gives wings even in schizophrenia: underestimation of tool-related effort in a motor imagery task

Abstract Humans frequently use tools to reduce action-related efforts. Interestingly, several studies have demonstrated that individuals had tool-related biases in terms of perceived effort reduction during motor imagery tasks, despite the lack of evidence of real benefits. Reduced effort allocation...

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Autores principales:	Amandine Décombe, Lionel Brunel, Vincent Murday, François Osiurak, Delphine Capdevielle, Stéphane Raffard
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Psychiatry RC435-571
Acceso en línea:	https://doaj.org/article/bd728f26f31d4d3395dce72a5e192d32
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id	oai:doaj.org-article:bd728f26f31d4d3395dce72a5e192d32
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spelling	oai:doaj.org-article:bd728f26f31d4d3395dce72a5e192d322021-12-02T18:02:30ZGetting a tool gives wings even in schizophrenia: underestimation of tool-related effort in a motor imagery task10.1038/s41537-021-00175-y2334-265Xhttps://doaj.org/article/bd728f26f31d4d3395dce72a5e192d322021-09-01T00:00:00Zhttps://doi.org/10.1038/s41537-021-00175-yhttps://doaj.org/toc/2334-265XAbstract Humans frequently use tools to reduce action-related efforts. Interestingly, several studies have demonstrated that individuals had tool-related biases in terms of perceived effort reduction during motor imagery tasks, despite the lack of evidence of real benefits. Reduced effort allocation has been repeatedly found in schizophrenia, but it remains unknown how schizophrenia patients perceive tool-related benefits regarding effort. Twenty-four schizophrenia patients and twenty-four nonclinical participants were instructed to move the same quantities of objects with their hands or with a tool in both real and imagined situations. Imagined and real movement durations were recorded. Similarly to nonclinical participants, patients overestimated tool-related benefits and underestimated tool-related effort in terms of time when they mentally simulated a task requiring the use of a tool. No association between movement durations and psychotic symptoms was found. Our results open new perspectives on the issue of effort in schizophrenia.Amandine DécombeLionel BrunelVincent MurdayFrançois OsiurakDelphine CapdevielleStéphane RaffardNature PortfolioarticlePsychiatryRC435-571ENnpj Schizophrenia, Vol 7, Iss 1, Pp 1-8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Psychiatry RC435-571
spellingShingle	Psychiatry RC435-571 Amandine Décombe Lionel Brunel Vincent Murday François Osiurak Delphine Capdevielle Stéphane Raffard Getting a tool gives wings even in schizophrenia: underestimation of tool-related effort in a motor imagery task
description	Abstract Humans frequently use tools to reduce action-related efforts. Interestingly, several studies have demonstrated that individuals had tool-related biases in terms of perceived effort reduction during motor imagery tasks, despite the lack of evidence of real benefits. Reduced effort allocation has been repeatedly found in schizophrenia, but it remains unknown how schizophrenia patients perceive tool-related benefits regarding effort. Twenty-four schizophrenia patients and twenty-four nonclinical participants were instructed to move the same quantities of objects with their hands or with a tool in both real and imagined situations. Imagined and real movement durations were recorded. Similarly to nonclinical participants, patients overestimated tool-related benefits and underestimated tool-related effort in terms of time when they mentally simulated a task requiring the use of a tool. No association between movement durations and psychotic symptoms was found. Our results open new perspectives on the issue of effort in schizophrenia.
format	article
author	Amandine Décombe Lionel Brunel Vincent Murday François Osiurak Delphine Capdevielle Stéphane Raffard
author_facet	Amandine Décombe Lionel Brunel Vincent Murday François Osiurak Delphine Capdevielle Stéphane Raffard
author_sort	Amandine Décombe
title	Getting a tool gives wings even in schizophrenia: underestimation of tool-related effort in a motor imagery task
title_short	Getting a tool gives wings even in schizophrenia: underestimation of tool-related effort in a motor imagery task
title_full	Getting a tool gives wings even in schizophrenia: underestimation of tool-related effort in a motor imagery task
title_fullStr	Getting a tool gives wings even in schizophrenia: underestimation of tool-related effort in a motor imagery task
title_full_unstemmed	Getting a tool gives wings even in schizophrenia: underestimation of tool-related effort in a motor imagery task
title_sort	getting a tool gives wings even in schizophrenia: underestimation of tool-related effort in a motor imagery task
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/bd728f26f31d4d3395dce72a5e192d32
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Getting a tool gives wings even in schizophrenia: underestimation of tool-related effort in a motor imagery task

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