Examining modifications of execution strategies during a continuous task

Abstract How strategies are formulated during a performance is an important aspect of motor control. Knowledge of the strategy employed in a task may help subjects achieve better performances, as it would help to evidence other possible strategies that could be used as well as help perfect a certain...

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Autores principales:	Erez James Cohen, Kunlin Wei, Diego Minciacchi
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/bbe4bb55e1fd47e7974411250c7d7ef1
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spelling	oai:doaj.org-article:bbe4bb55e1fd47e7974411250c7d7ef12021-12-02T13:30:50ZExamining modifications of execution strategies during a continuous task10.1038/s41598-021-84369-52045-2322https://doaj.org/article/bbe4bb55e1fd47e7974411250c7d7ef12021-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-84369-5https://doaj.org/toc/2045-2322Abstract How strategies are formulated during a performance is an important aspect of motor control. Knowledge of the strategy employed in a task may help subjects achieve better performances, as it would help to evidence other possible strategies that could be used as well as help perfect a certain strategy. We sought to investigate how much of a performance is conditioned by the initial state and whether behavior throughout the performance is modified within a short timescale. In other words, we focus on the process of execution and not on the outcome. To this scope we used a repeated continuous circle tracing task. Performances were decomposed into different components (i.e., execution variables) whose combination is able to numerically determine movement outcome. By identifying execution variables of speed and duration, we created an execution space and a solution manifold (i.e., combinations of execution variables yielding zero discrepancy from the desired outcome) and divided the subjects according to their initial performance in that space into speed preference, duration preference, and no-preference groups. We demonstrated that specific strategies may be identified in a continuous task, and strategies remain relatively stable throughout the performance. Moreover, as performances remained stable, the initial location in the execution space can be used to determine the subject’s strategy. Finally, contrary to other studies, we demonstrated that, in a continuous task, performances were associated with reduced exploration of the execution space.Erez James CohenKunlin WeiDiego MinciacchiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-14 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Erez James Cohen Kunlin Wei Diego Minciacchi Examining modifications of execution strategies during a continuous task
description	Abstract How strategies are formulated during a performance is an important aspect of motor control. Knowledge of the strategy employed in a task may help subjects achieve better performances, as it would help to evidence other possible strategies that could be used as well as help perfect a certain strategy. We sought to investigate how much of a performance is conditioned by the initial state and whether behavior throughout the performance is modified within a short timescale. In other words, we focus on the process of execution and not on the outcome. To this scope we used a repeated continuous circle tracing task. Performances were decomposed into different components (i.e., execution variables) whose combination is able to numerically determine movement outcome. By identifying execution variables of speed and duration, we created an execution space and a solution manifold (i.e., combinations of execution variables yielding zero discrepancy from the desired outcome) and divided the subjects according to their initial performance in that space into speed preference, duration preference, and no-preference groups. We demonstrated that specific strategies may be identified in a continuous task, and strategies remain relatively stable throughout the performance. Moreover, as performances remained stable, the initial location in the execution space can be used to determine the subject’s strategy. Finally, contrary to other studies, we demonstrated that, in a continuous task, performances were associated with reduced exploration of the execution space.
format	article
author	Erez James Cohen Kunlin Wei Diego Minciacchi
author_facet	Erez James Cohen Kunlin Wei Diego Minciacchi
author_sort	Erez James Cohen
title	Examining modifications of execution strategies during a continuous task
title_short	Examining modifications of execution strategies during a continuous task
title_full	Examining modifications of execution strategies during a continuous task
title_fullStr	Examining modifications of execution strategies during a continuous task
title_full_unstemmed	Examining modifications of execution strategies during a continuous task
title_sort	examining modifications of execution strategies during a continuous task
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/bbe4bb55e1fd47e7974411250c7d7ef1
work_keys_str_mv	AT erezjamescohen examiningmodificationsofexecutionstrategiesduringacontinuoustask AT kunlinwei examiningmodificationsofexecutionstrategiesduringacontinuoustask AT diegominciacchi examiningmodificationsofexecutionstrategiesduringacontinuoustask
_version_	1718392938855137280

Examining modifications of execution strategies during a continuous task

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