Active lead-in variability affects motor memory formation and slows motor learning

Abstract Rapid learning can be critical to ensure elite performance in a changing world or to recover basic movement after neural injuries. Recently it was shown that the variability of follow-through movements affects the rate of motor memory formation. Here we investigate if lead-in movement has a...

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Autores principales:	Ian S. Howard, Christopher Ford, Angelo Cangelosi, David W. Franklin
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/1d36c350e92a41f39eb35cfcc048a0d3
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spelling	oai:doaj.org-article:1d36c350e92a41f39eb35cfcc048a0d32021-12-02T15:05:51ZActive lead-in variability affects motor memory formation and slows motor learning10.1038/s41598-017-05697-z2045-2322https://doaj.org/article/1d36c350e92a41f39eb35cfcc048a0d32017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-05697-zhttps://doaj.org/toc/2045-2322Abstract Rapid learning can be critical to ensure elite performance in a changing world or to recover basic movement after neural injuries. Recently it was shown that the variability of follow-through movements affects the rate of motor memory formation. Here we investigate if lead-in movement has a similar effect on learning rate. We hypothesized that both modality and variability of lead-in movement would play critical roles, with simulations suggesting that only changes in active lead-in variability would exhibit slower learning. We tested this experimentally using a two-movement paradigm, with either visual or active initial lead-in movements preceeding a second movement performed in a force field. As predicted, increasing active lead-in variability reduced the rate of motor adaptation, whereas changes in visual lead-in variability had little effect. This demonstrates that distinct neural tuning activity is induced by different lead-in modalities, subsequently influencing the access to, and switching between, distinct motor memories.Ian S. HowardChristopher FordAngelo CangelosiDavid W. FranklinNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-12 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Ian S. Howard Christopher Ford Angelo Cangelosi David W. Franklin Active lead-in variability affects motor memory formation and slows motor learning
description	Abstract Rapid learning can be critical to ensure elite performance in a changing world or to recover basic movement after neural injuries. Recently it was shown that the variability of follow-through movements affects the rate of motor memory formation. Here we investigate if lead-in movement has a similar effect on learning rate. We hypothesized that both modality and variability of lead-in movement would play critical roles, with simulations suggesting that only changes in active lead-in variability would exhibit slower learning. We tested this experimentally using a two-movement paradigm, with either visual or active initial lead-in movements preceeding a second movement performed in a force field. As predicted, increasing active lead-in variability reduced the rate of motor adaptation, whereas changes in visual lead-in variability had little effect. This demonstrates that distinct neural tuning activity is induced by different lead-in modalities, subsequently influencing the access to, and switching between, distinct motor memories.
format	article
author	Ian S. Howard Christopher Ford Angelo Cangelosi David W. Franklin
author_facet	Ian S. Howard Christopher Ford Angelo Cangelosi David W. Franklin
author_sort	Ian S. Howard
title	Active lead-in variability affects motor memory formation and slows motor learning
title_short	Active lead-in variability affects motor memory formation and slows motor learning
title_full	Active lead-in variability affects motor memory formation and slows motor learning
title_fullStr	Active lead-in variability affects motor memory formation and slows motor learning
title_full_unstemmed	Active lead-in variability affects motor memory formation and slows motor learning
title_sort	active lead-in variability affects motor memory formation and slows motor learning
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/1d36c350e92a41f39eb35cfcc048a0d3
work_keys_str_mv	AT ianshoward activeleadinvariabilityaffectsmotormemoryformationandslowsmotorlearning AT christopherford activeleadinvariabilityaffectsmotormemoryformationandslowsmotorlearning AT angelocangelosi activeleadinvariabilityaffectsmotormemoryformationandslowsmotorlearning AT davidwfranklin activeleadinvariabilityaffectsmotormemoryformationandslowsmotorlearning
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Active lead-in variability affects motor memory formation and slows motor learning

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