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Explaining the neural activity distribution associated with discrete movement sequences: Evidence for parallel functional systems

To explore the effects of practice we scanned participants with fMRI while they were performing four-key unfamiliar and familiar sequences, and compared the associated activities relative to simple control sequences. On the basis of a recent cognitive model of sequential motor behavior (C-SMB), we p...

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Autores principales: Verwey, Willem B., Jouen, Anne-Lise, Dominey, Peter F., Ventre-Dominey, Jocelyne
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer US 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6344389/
https://www.ncbi.nlm.nih.gov/pubmed/30406305
http://dx.doi.org/10.3758/s13415-018-00651-6
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author Verwey, Willem B.
Jouen, Anne-Lise
Dominey, Peter F.
Ventre-Dominey, Jocelyne
author_facet Verwey, Willem B.
Jouen, Anne-Lise
Dominey, Peter F.
Ventre-Dominey, Jocelyne
author_sort Verwey, Willem B.
collection PubMed
description To explore the effects of practice we scanned participants with fMRI while they were performing four-key unfamiliar and familiar sequences, and compared the associated activities relative to simple control sequences. On the basis of a recent cognitive model of sequential motor behavior (C-SMB), we propose that the observed neural activity would be associated with three functional networks that can operate in parallel and that allow (a) responding to stimuli in a reaction mode, (b) sequence execution using spatial sequence representations in a central-symbolic mode, and (c) sequence execution using motor chunk representations in a chunking mode. On the basis of this model and findings in the literature, we predicted which neural areas would be active during execution of the unfamiliar and familiar keying sequences. The observed neural activities were largely in line with our predictions, and allowed functions to be attributed to the active brain areas that fit the three above functional systems. The results corroborate C-SMB’s assumption that at advanced skill levels the systems executing motor chunks and translating key-specific stimuli are racing to trigger individual responses. They further support recent behavioral indications that spatial sequence representations continue to be used.
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spelling pubmed-63443892019-02-08 Explaining the neural activity distribution associated with discrete movement sequences: Evidence for parallel functional systems Verwey, Willem B. Jouen, Anne-Lise Dominey, Peter F. Ventre-Dominey, Jocelyne Cogn Affect Behav Neurosci Article To explore the effects of practice we scanned participants with fMRI while they were performing four-key unfamiliar and familiar sequences, and compared the associated activities relative to simple control sequences. On the basis of a recent cognitive model of sequential motor behavior (C-SMB), we propose that the observed neural activity would be associated with three functional networks that can operate in parallel and that allow (a) responding to stimuli in a reaction mode, (b) sequence execution using spatial sequence representations in a central-symbolic mode, and (c) sequence execution using motor chunk representations in a chunking mode. On the basis of this model and findings in the literature, we predicted which neural areas would be active during execution of the unfamiliar and familiar keying sequences. The observed neural activities were largely in line with our predictions, and allowed functions to be attributed to the active brain areas that fit the three above functional systems. The results corroborate C-SMB’s assumption that at advanced skill levels the systems executing motor chunks and translating key-specific stimuli are racing to trigger individual responses. They further support recent behavioral indications that spatial sequence representations continue to be used. Springer US 2018-11-07 2019 /pmc/articles/PMC6344389/ /pubmed/30406305 http://dx.doi.org/10.3758/s13415-018-00651-6 Text en © The Author(s) 2018 OpenAccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
spellingShingle Article
Verwey, Willem B.
Jouen, Anne-Lise
Dominey, Peter F.
Ventre-Dominey, Jocelyne
Explaining the neural activity distribution associated with discrete movement sequences: Evidence for parallel functional systems
title Explaining the neural activity distribution associated with discrete movement sequences: Evidence for parallel functional systems
title_full Explaining the neural activity distribution associated with discrete movement sequences: Evidence for parallel functional systems
title_fullStr Explaining the neural activity distribution associated with discrete movement sequences: Evidence for parallel functional systems
title_full_unstemmed Explaining the neural activity distribution associated with discrete movement sequences: Evidence for parallel functional systems
title_short Explaining the neural activity distribution associated with discrete movement sequences: Evidence for parallel functional systems
title_sort explaining the neural activity distribution associated with discrete movement sequences: evidence for parallel functional systems
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6344389/
https://www.ncbi.nlm.nih.gov/pubmed/30406305
http://dx.doi.org/10.3758/s13415-018-00651-6
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