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Motor Learning Characterized by Changing Lévy Distributions

The probability distributions for changes in transverse plane fingertip speed are Lévy distributed in human pole balancing. Six subjects learned to balance a pole on their index finger over three sessions while sitting and standing. The Lévy or decay exponent decreased as a function of learning, sho...

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Detalles Bibliográficos
Autores principales: Cluff, Tyler, Balasubramaniam, Ramesh
Formato: Texto
Lenguaje:English
Publicado: Public Library of Science 2009
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2695787/
https://www.ncbi.nlm.nih.gov/pubmed/19543399
http://dx.doi.org/10.1371/journal.pone.0005998
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author Cluff, Tyler
Balasubramaniam, Ramesh
author_facet Cluff, Tyler
Balasubramaniam, Ramesh
author_sort Cluff, Tyler
collection PubMed
description The probability distributions for changes in transverse plane fingertip speed are Lévy distributed in human pole balancing. Six subjects learned to balance a pole on their index finger over three sessions while sitting and standing. The Lévy or decay exponent decreased as a function of learning, showing reduced decay in the probability for large speed steps and was significantly smaller in the sitting condition. However, the probability distribution for changes in fingertip speed was truncated so that the probability for large steps was reduced in this condition. These results show a learning-induced tolerance for large speed step sizes and demonstrate that motor learning in continuous tasks may be characterized by changing distributions that reflect sensorimotor skill acquisition.
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spelling pubmed-26957872009-06-22 Motor Learning Characterized by Changing Lévy Distributions Cluff, Tyler Balasubramaniam, Ramesh PLoS One Research Article The probability distributions for changes in transverse plane fingertip speed are Lévy distributed in human pole balancing. Six subjects learned to balance a pole on their index finger over three sessions while sitting and standing. The Lévy or decay exponent decreased as a function of learning, showing reduced decay in the probability for large speed steps and was significantly smaller in the sitting condition. However, the probability distribution for changes in fingertip speed was truncated so that the probability for large steps was reduced in this condition. These results show a learning-induced tolerance for large speed step sizes and demonstrate that motor learning in continuous tasks may be characterized by changing distributions that reflect sensorimotor skill acquisition. Public Library of Science 2009-06-22 /pmc/articles/PMC2695787/ /pubmed/19543399 http://dx.doi.org/10.1371/journal.pone.0005998 Text en Cluff, Balasubramaniam. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.
spellingShingle Research Article
Cluff, Tyler
Balasubramaniam, Ramesh
Motor Learning Characterized by Changing Lévy Distributions
title Motor Learning Characterized by Changing Lévy Distributions
title_full Motor Learning Characterized by Changing Lévy Distributions
title_fullStr Motor Learning Characterized by Changing Lévy Distributions
title_full_unstemmed Motor Learning Characterized by Changing Lévy Distributions
title_short Motor Learning Characterized by Changing Lévy Distributions
title_sort motor learning characterized by changing lévy distributions
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2695787/
https://www.ncbi.nlm.nih.gov/pubmed/19543399
http://dx.doi.org/10.1371/journal.pone.0005998
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