Time to task failure and motor cortical activity depend on the type of feedback in visuomotor tasks.

The present study aimed to elucidate whether the type of feedback influences the performance and the motor cortical activity when executing identical visuomotor tasks. For this purpose, time to task failure was measured during position- and force-controlled muscular contractions. Subjects received e...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Benedikt Lauber, Christian Leukel, Albert Gollhofer, Wolfgang Taube
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2012
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/997a46f52430492bbf3a0501450b978d
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:997a46f52430492bbf3a0501450b978d
record_format	dspace
spelling	oai:doaj.org-article:997a46f52430492bbf3a0501450b978d2021-11-18T07:25:39ZTime to task failure and motor cortical activity depend on the type of feedback in visuomotor tasks.1932-620310.1371/journal.pone.0032433https://doaj.org/article/997a46f52430492bbf3a0501450b978d2012-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22427836/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203The present study aimed to elucidate whether the type of feedback influences the performance and the motor cortical activity when executing identical visuomotor tasks. For this purpose, time to task failure was measured during position- and force-controlled muscular contractions. Subjects received either visual feedback about the force produced by pressing a force transducer or about the actual position between thumb and index finger. Participants were instructed to either match the force level of 30% MVC or the finger position corresponding to the thumb and index finger angle at this contraction intensity. Subjects demonstrated a shorter time to task failure when they were provided with feedback about their joint position (11.5 ± 6.2 min) instead of force feedback (19.2 ± 12.8 min; P = 0.01). To test differences in motor cortical activity between position- and force-controlled contractions, subthreshold transcranial magnetic stimulation (subTMS) was applied while executing submaximal (20% MVC) contractions. SubTMS resulted in a suppression of the first dorsal interosseus muscle (FDI) EMG in both tasks. However, the mean suppression for the position-controlled task was significantly greater (18.6 ± 9.4% vs. 13.3 ± 7.5%; P = 0.025) and lasted longer (13.9 ± 7.5 ms vs. 9.3 ± 4.3 ms; P = 0.024) compared to the force-controlled task. The FDI background EMG obtained without stimulation was comparable in all conditions. The present results demonstrate that the presentation of different feedback modalities influences the time to task failure as well as the cortical activity. As only the feedback was altered but not the mechanics of the task, the present results add to the body of evidence that suggests that the central nervous system processes force and position information in different ways.Benedikt LauberChristian LeukelAlbert GollhoferWolfgang TaubePublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 7, Iss 3, p e32433 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Benedikt Lauber Christian Leukel Albert Gollhofer Wolfgang Taube Time to task failure and motor cortical activity depend on the type of feedback in visuomotor tasks.
description	The present study aimed to elucidate whether the type of feedback influences the performance and the motor cortical activity when executing identical visuomotor tasks. For this purpose, time to task failure was measured during position- and force-controlled muscular contractions. Subjects received either visual feedback about the force produced by pressing a force transducer or about the actual position between thumb and index finger. Participants were instructed to either match the force level of 30% MVC or the finger position corresponding to the thumb and index finger angle at this contraction intensity. Subjects demonstrated a shorter time to task failure when they were provided with feedback about their joint position (11.5 ± 6.2 min) instead of force feedback (19.2 ± 12.8 min; P = 0.01). To test differences in motor cortical activity between position- and force-controlled contractions, subthreshold transcranial magnetic stimulation (subTMS) was applied while executing submaximal (20% MVC) contractions. SubTMS resulted in a suppression of the first dorsal interosseus muscle (FDI) EMG in both tasks. However, the mean suppression for the position-controlled task was significantly greater (18.6 ± 9.4% vs. 13.3 ± 7.5%; P = 0.025) and lasted longer (13.9 ± 7.5 ms vs. 9.3 ± 4.3 ms; P = 0.024) compared to the force-controlled task. The FDI background EMG obtained without stimulation was comparable in all conditions. The present results demonstrate that the presentation of different feedback modalities influences the time to task failure as well as the cortical activity. As only the feedback was altered but not the mechanics of the task, the present results add to the body of evidence that suggests that the central nervous system processes force and position information in different ways.
format	article
author	Benedikt Lauber Christian Leukel Albert Gollhofer Wolfgang Taube
author_facet	Benedikt Lauber Christian Leukel Albert Gollhofer Wolfgang Taube
author_sort	Benedikt Lauber
title	Time to task failure and motor cortical activity depend on the type of feedback in visuomotor tasks.
title_short	Time to task failure and motor cortical activity depend on the type of feedback in visuomotor tasks.
title_full	Time to task failure and motor cortical activity depend on the type of feedback in visuomotor tasks.
title_fullStr	Time to task failure and motor cortical activity depend on the type of feedback in visuomotor tasks.
title_full_unstemmed	Time to task failure and motor cortical activity depend on the type of feedback in visuomotor tasks.
title_sort	time to task failure and motor cortical activity depend on the type of feedback in visuomotor tasks.
publisher	Public Library of Science (PLoS)
publishDate	2012
url	https://doaj.org/article/997a46f52430492bbf3a0501450b978d
work_keys_str_mv	AT benediktlauber timetotaskfailureandmotorcorticalactivitydependonthetypeoffeedbackinvisuomotortasks AT christianleukel timetotaskfailureandmotorcorticalactivitydependonthetypeoffeedbackinvisuomotortasks AT albertgollhofer timetotaskfailureandmotorcorticalactivitydependonthetypeoffeedbackinvisuomotortasks AT wolfgangtaube timetotaskfailureandmotorcorticalactivitydependonthetypeoffeedbackinvisuomotortasks
_version_	1718423489890746368

Time to task failure and motor cortical activity depend on the type of feedback in visuomotor tasks.

Ejemplares similares