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Motor coordination: when two have to act as one
Trying to pass someone walking toward you in a narrow corridor is a familiar example of a two-person motor game that requires coordination. In this study, we investigate coordination in sensorimotor tasks that correspond to classic coordination games with multiple Nash equilibria, such as “choosing...
Autores principales: | , , |
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Formato: | Texto |
Lenguaje: | English |
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Springer-Verlag
2011
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3102209/ https://www.ncbi.nlm.nih.gov/pubmed/21455618 http://dx.doi.org/10.1007/s00221-011-2642-y |
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author | Braun, Daniel A. Ortega, Pedro A. Wolpert, Daniel M. |
author_facet | Braun, Daniel A. Ortega, Pedro A. Wolpert, Daniel M. |
author_sort | Braun, Daniel A. |
collection | PubMed |
description | Trying to pass someone walking toward you in a narrow corridor is a familiar example of a two-person motor game that requires coordination. In this study, we investigate coordination in sensorimotor tasks that correspond to classic coordination games with multiple Nash equilibria, such as “choosing sides,” “stag hunt,” “chicken,” and “battle of sexes”. In these tasks, subjects made reaching movements reflecting their continuously evolving “decisions” while they received a continuous payoff in the form of a resistive force counteracting their movements. Successful coordination required two subjects to “choose” the same Nash equilibrium in this force-payoff landscape within a single reach. We found that on the majority of trials coordination was achieved. Compared to the proportion of trials in which miscoordination occurred, successful coordination was characterized by several distinct features: an increased mutual information between the players’ movement endpoints, an increased joint entropy during the movements, and by differences in the timing of the players’ responses. Moreover, we found that the probability of successful coordination depends on the players’ initial distance from the Nash equilibria. Our results suggest that two-person coordination arises naturally in motor interactions and is facilitated by favorable initial positions, stereotypical motor pattern, and differences in response times. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1007/s00221-011-2642-y) contains supplementary material, which is available to authorized users. |
format | Text |
id | pubmed-3102209 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2011 |
publisher | Springer-Verlag |
record_format | MEDLINE/PubMed |
spelling | pubmed-31022092011-07-14 Motor coordination: when two have to act as one Braun, Daniel A. Ortega, Pedro A. Wolpert, Daniel M. Exp Brain Res Research Article Trying to pass someone walking toward you in a narrow corridor is a familiar example of a two-person motor game that requires coordination. In this study, we investigate coordination in sensorimotor tasks that correspond to classic coordination games with multiple Nash equilibria, such as “choosing sides,” “stag hunt,” “chicken,” and “battle of sexes”. In these tasks, subjects made reaching movements reflecting their continuously evolving “decisions” while they received a continuous payoff in the form of a resistive force counteracting their movements. Successful coordination required two subjects to “choose” the same Nash equilibrium in this force-payoff landscape within a single reach. We found that on the majority of trials coordination was achieved. Compared to the proportion of trials in which miscoordination occurred, successful coordination was characterized by several distinct features: an increased mutual information between the players’ movement endpoints, an increased joint entropy during the movements, and by differences in the timing of the players’ responses. Moreover, we found that the probability of successful coordination depends on the players’ initial distance from the Nash equilibria. Our results suggest that two-person coordination arises naturally in motor interactions and is facilitated by favorable initial positions, stereotypical motor pattern, and differences in response times. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1007/s00221-011-2642-y) contains supplementary material, which is available to authorized users. Springer-Verlag 2011-04-01 2011 /pmc/articles/PMC3102209/ /pubmed/21455618 http://dx.doi.org/10.1007/s00221-011-2642-y Text en © The Author(s) 2011 https://creativecommons.org/licenses/by-nc/4.0/ This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited. |
spellingShingle | Research Article Braun, Daniel A. Ortega, Pedro A. Wolpert, Daniel M. Motor coordination: when two have to act as one |
title | Motor coordination: when two have to act as one |
title_full | Motor coordination: when two have to act as one |
title_fullStr | Motor coordination: when two have to act as one |
title_full_unstemmed | Motor coordination: when two have to act as one |
title_short | Motor coordination: when two have to act as one |
title_sort | motor coordination: when two have to act as one |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3102209/ https://www.ncbi.nlm.nih.gov/pubmed/21455618 http://dx.doi.org/10.1007/s00221-011-2642-y |
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