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Impact of conscious intent on chunking during motor learning

Humans and other mammals learn sequences of movements by splitting them into smaller “chunks.” Such chunks are defined by the faster speed of performance of groups of movements. The purpose of this report is to determine how conscious intent to learn impacts chunking, an issue that remains unknown....

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Detalles Bibliográficos
Autores principales: Song, Sunbin, Cohen, Leonardo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Cold Spring Harbor Laboratory Press 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4138363/
https://www.ncbi.nlm.nih.gov/pubmed/25128535
http://dx.doi.org/10.1101/lm.035824.114
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author Song, Sunbin
Cohen, Leonardo
author_facet Song, Sunbin
Cohen, Leonardo
author_sort Song, Sunbin
collection PubMed
description Humans and other mammals learn sequences of movements by splitting them into smaller “chunks.” Such chunks are defined by the faster speed of performance of groups of movements. The purpose of this report is to determine how conscious intent to learn impacts chunking, an issue that remains unknown. Here, we studied 80 subjects who either with or without conscious intent learned a motor sequence. Performance was tested before and up to 1-wk post-training. Chunk formation, carryover of chunks, and concatenation of chunks into longer chunks, all measures of motor chunking success, were determined at each time-point. We found that formation, carryover, and concatenation of chunks were comparable across groups and did not improve over the training session and subsequent testing times. Thus, motor learning progressed in the absence of improvements in chunking irrespective of conscious intent. These data suggest that mechanisms other than chunking contribute to successful motor learning with and without conscious intent.
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spelling pubmed-41383632015-09-01 Impact of conscious intent on chunking during motor learning Song, Sunbin Cohen, Leonardo Learn Mem Brief Communication Humans and other mammals learn sequences of movements by splitting them into smaller “chunks.” Such chunks are defined by the faster speed of performance of groups of movements. The purpose of this report is to determine how conscious intent to learn impacts chunking, an issue that remains unknown. Here, we studied 80 subjects who either with or without conscious intent learned a motor sequence. Performance was tested before and up to 1-wk post-training. Chunk formation, carryover of chunks, and concatenation of chunks into longer chunks, all measures of motor chunking success, were determined at each time-point. We found that formation, carryover, and concatenation of chunks were comparable across groups and did not improve over the training session and subsequent testing times. Thus, motor learning progressed in the absence of improvements in chunking irrespective of conscious intent. These data suggest that mechanisms other than chunking contribute to successful motor learning with and without conscious intent. Cold Spring Harbor Laboratory Press 2014-09 /pmc/articles/PMC4138363/ /pubmed/25128535 http://dx.doi.org/10.1101/lm.035824.114 Text en Published by Cold Spring Harbor Laboratory Press http://creativecommons.org/licenses/by-nc/4.0/ This article is distributed exclusively by Cold Spring Harbor Laboratory Press for the first 12 months after the full-issue publication date (see http://learnmem.cshlp.org/site/misc/terms.xhtml). After 12 months, it is available under a Creative Commons License (Attribution-NonCommercial 4.0 International), as described at http://creativecommons.org/licenses/by-nc/4.0/.
spellingShingle Brief Communication
Song, Sunbin
Cohen, Leonardo
Impact of conscious intent on chunking during motor learning
title Impact of conscious intent on chunking during motor learning
title_full Impact of conscious intent on chunking during motor learning
title_fullStr Impact of conscious intent on chunking during motor learning
title_full_unstemmed Impact of conscious intent on chunking during motor learning
title_short Impact of conscious intent on chunking during motor learning
title_sort impact of conscious intent on chunking during motor learning
topic Brief Communication
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4138363/
https://www.ncbi.nlm.nih.gov/pubmed/25128535
http://dx.doi.org/10.1101/lm.035824.114
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