Learning to stand with unexpected sensorimotor delays

Human standing balance relies on self-motion estimates that are used by the nervous system to detect unexpected movements and enable corrective responses and adaptations in control. These estimates must accommodate for inherent delays in sensory and motor pathways. Here, we used a robotic system to...

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Autores principales:	Brandon G Rasman, Patrick A Forbes, Ryan M Peters, Oscar Ortiz, Ian Franks, J Timothy Inglis, Romeo Chua, Jean-Sébastien Blouin
Formato:	article
Lenguaje:	EN
Publicado:	eLife Sciences Publications Ltd 2021
Materias:	sensorimotor delay sensorimotor adaptation standing balance control vestibular motion perception posture Medicine R Science Q Biology (General) QH301-705.5
Acceso en línea:	https://doaj.org/article/e87ae73a3b0a49598fd891b5ef446561
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id	oai:doaj.org-article:e87ae73a3b0a49598fd891b5ef446561
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spelling	oai:doaj.org-article:e87ae73a3b0a49598fd891b5ef4465612021-11-15T06:46:11ZLearning to stand with unexpected sensorimotor delays10.7554/eLife.650852050-084Xe65085https://doaj.org/article/e87ae73a3b0a49598fd891b5ef4465612021-08-01T00:00:00Zhttps://elifesciences.org/articles/65085https://doaj.org/toc/2050-084XHuman standing balance relies on self-motion estimates that are used by the nervous system to detect unexpected movements and enable corrective responses and adaptations in control. These estimates must accommodate for inherent delays in sensory and motor pathways. Here, we used a robotic system to simulate human standing about the ankles in the anteroposterior direction and impose sensorimotor delays into the control of balance. Imposed delays destabilized standing, but through training, participants adapted and re-learned to balance with the delays. Before training, imposed delays attenuated vestibular contributions to balance and triggered perceptions of unexpected standing motion, suggesting increased uncertainty in the internal self-motion estimates. After training, vestibular contributions partially returned to baseline levels and larger delays were needed to evoke perceptions of unexpected standing motion. Through learning, the nervous system accommodates balance sensorimotor delays by causally linking whole-body sensory feedback (initially interpreted as imposed motion) to self-generated balance motor commands.Brandon G RasmanPatrick A ForbesRyan M PetersOscar OrtizIan FranksJ Timothy InglisRomeo ChuaJean-Sébastien BlouineLife Sciences Publications Ltdarticlesensorimotor delaysensorimotor adaptationstanding balance controlvestibularmotion perceptionpostureMedicineRScienceQBiology (General)QH301-705.5ENeLife, Vol 10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	sensorimotor delay sensorimotor adaptation standing balance control vestibular motion perception posture Medicine R Science Q Biology (General) QH301-705.5
spellingShingle	sensorimotor delay sensorimotor adaptation standing balance control vestibular motion perception posture Medicine R Science Q Biology (General) QH301-705.5 Brandon G Rasman Patrick A Forbes Ryan M Peters Oscar Ortiz Ian Franks J Timothy Inglis Romeo Chua Jean-Sébastien Blouin Learning to stand with unexpected sensorimotor delays
description	Human standing balance relies on self-motion estimates that are used by the nervous system to detect unexpected movements and enable corrective responses and adaptations in control. These estimates must accommodate for inherent delays in sensory and motor pathways. Here, we used a robotic system to simulate human standing about the ankles in the anteroposterior direction and impose sensorimotor delays into the control of balance. Imposed delays destabilized standing, but through training, participants adapted and re-learned to balance with the delays. Before training, imposed delays attenuated vestibular contributions to balance and triggered perceptions of unexpected standing motion, suggesting increased uncertainty in the internal self-motion estimates. After training, vestibular contributions partially returned to baseline levels and larger delays were needed to evoke perceptions of unexpected standing motion. Through learning, the nervous system accommodates balance sensorimotor delays by causally linking whole-body sensory feedback (initially interpreted as imposed motion) to self-generated balance motor commands.
format	article
author	Brandon G Rasman Patrick A Forbes Ryan M Peters Oscar Ortiz Ian Franks J Timothy Inglis Romeo Chua Jean-Sébastien Blouin
author_facet	Brandon G Rasman Patrick A Forbes Ryan M Peters Oscar Ortiz Ian Franks J Timothy Inglis Romeo Chua Jean-Sébastien Blouin
author_sort	Brandon G Rasman
title	Learning to stand with unexpected sensorimotor delays
title_short	Learning to stand with unexpected sensorimotor delays
title_full	Learning to stand with unexpected sensorimotor delays
title_fullStr	Learning to stand with unexpected sensorimotor delays
title_full_unstemmed	Learning to stand with unexpected sensorimotor delays
title_sort	learning to stand with unexpected sensorimotor delays
publisher	eLife Sciences Publications Ltd
publishDate	2021
url	https://doaj.org/article/e87ae73a3b0a49598fd891b5ef446561
work_keys_str_mv	AT brandongrasman learningtostandwithunexpectedsensorimotordelays AT patrickaforbes learningtostandwithunexpectedsensorimotordelays AT ryanmpeters learningtostandwithunexpectedsensorimotordelays AT oscarortiz learningtostandwithunexpectedsensorimotordelays AT ianfranks learningtostandwithunexpectedsensorimotordelays AT jtimothyinglis learningtostandwithunexpectedsensorimotordelays AT romeochua learningtostandwithunexpectedsensorimotordelays AT jeansebastienblouin learningtostandwithunexpectedsensorimotordelays
_version_	1718428589250052096

Learning to stand with unexpected sensorimotor delays

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