Can Discrete Joint Action Be Synergistic? Studying the Stabilization of Interpersonal Hand Coordination
Identifieur interne : 000708 ( Pmc/Checkpoint ); précédent : 000707; suivant : 000709Can Discrete Joint Action Be Synergistic? Studying the Stabilization of Interpersonal Hand Coordination
Auteurs : Veronica Romero ; Rachel Kallen ; Michael A. Riley ; Michael J. RichardsonSource :
- Journal of experimental psychology. Human perception and performance [ 0096-1523 ] ; 2015.
Abstract
The human perceptual-motor system is tightly coupled to the physical and informational dynamics of a task environment. These dynamics operate to constrain the high-dimensional order of the human movement system into low-dimensional, task-specific synergies—functional groupings of structural elements that are temporarily constrained to act as a single coordinated unit. The aim of the current study was to determine whether synergistic processes operate when coacting individuals coordinate to perform a discrete joint-action task. Pairs of participants sat next to each other and each used 1 arm to complete a pointer-to-target task. Using the uncontrolled manifold (UCM) analysis for the first time in a discrete joint action, the structure of joint-angle variance was examined to determine whether there was synergistic organization of the degrees of freedom employed at the interpersonal or intrapersonal levels. The results revealed that the motor actions performed by coactors were synergistically organized at both the interpersonal and intrapersonal levels. More importantly, however, the interpersonal synergy was found to be significantly stronger than the intrapersonal synergies. Accordingly, the results provide clear evidence that coacting individuals can become temporarily organized to form single synergistic 2-person systems during performance of a discrete joint action.
Url:
DOI: 10.1037/xhp0000083
PubMed: 26052696
PubMed Central: 4801325
Affiliations:
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PMC:4801325Le document en format XML
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<front><div type="abstract" xml:lang="en"><p id="P1">The human perceptual-motor system is tightly coupled to the physical and informational dynamics of a task environment. These dynamics operate to constrain the high-dimensional order of the human movement system into low-dimensional, task-specific synergies—functional groupings of structural elements that are temporarily constrained to act as a single coordinated unit. The aim of the current study was to determine whether synergistic processes operate when coacting individuals coordinate to perform a discrete joint-action task. Pairs of participants sat next to each other and each used 1 arm to complete a pointer-to-target task. Using the uncontrolled manifold (UCM) analysis for the first time in a discrete joint action, the structure of joint-angle variance was examined to determine whether there was synergistic organization of the degrees of freedom employed at the interpersonal or intrapersonal levels. The results revealed that the motor actions performed by coactors were synergistically organized at both the interpersonal and intrapersonal levels. More importantly, however, the interpersonal synergy was found to be significantly stronger than the intrapersonal synergies. Accordingly, the results provide clear evidence that coacting individuals can become temporarily organized to form single synergistic 2-person systems during performance of a discrete joint action.</p>
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<title-group><article-title>Can Discrete Joint Action Be Synergistic? Studying the Stabilization of Interpersonal Hand Coordination</article-title>
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<contrib-group><contrib contrib-type="author"><name><surname>Romero</surname>
<given-names>Veronica</given-names>
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<contrib contrib-type="author"><name><surname>Kallen</surname>
<given-names>Rachel</given-names>
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<contrib contrib-type="author"><name><surname>Riley</surname>
<given-names>Michael A.</given-names>
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<contrib contrib-type="author"><name><surname>Richardson</surname>
<given-names>Michael J.</given-names>
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<aff id="A1">University of Cincinnati</aff>
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<author-notes><corresp id="FN1">Correspondence concerning this article should be addressed to: Veronica Romero, Department of Psychology, ML 0376, 4150 Edwards C1, University of Cincinnati, Cincinnati, OH 45221. <email>romerovc@mail.uc.edu</email>
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<fn id="FN2"><p>Veronica Romero, Rachel Kallen, Michael A. Riley, and Michael J. Richardson, Department of Psychology, University of Cincinnati.</p>
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<pub-date pub-type="nihms-submitted"><day>10</day>
<month>3</month>
<year>2016</year>
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<pub-date pub-type="epub"><day>08</day>
<month>6</month>
<year>2015</year>
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<pub-date pub-type="ppub"><month>10</month>
<year>2015</year>
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<pub-date pub-type="pmc-release"><day>21</day>
<month>3</month>
<year>2016</year>
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<volume>41</volume>
<issue>5</issue>
<fpage>1223</fpage>
<lpage>1235</lpage>
<pmc-comment>elocation-id from pubmed: 10.1037/xhp0000083</pmc-comment>
<abstract><p id="P1">The human perceptual-motor system is tightly coupled to the physical and informational dynamics of a task environment. These dynamics operate to constrain the high-dimensional order of the human movement system into low-dimensional, task-specific synergies—functional groupings of structural elements that are temporarily constrained to act as a single coordinated unit. The aim of the current study was to determine whether synergistic processes operate when coacting individuals coordinate to perform a discrete joint-action task. Pairs of participants sat next to each other and each used 1 arm to complete a pointer-to-target task. Using the uncontrolled manifold (UCM) analysis for the first time in a discrete joint action, the structure of joint-angle variance was examined to determine whether there was synergistic organization of the degrees of freedom employed at the interpersonal or intrapersonal levels. The results revealed that the motor actions performed by coactors were synergistically organized at both the interpersonal and intrapersonal levels. More importantly, however, the interpersonal synergy was found to be significantly stronger than the intrapersonal synergies. Accordingly, the results provide clear evidence that coacting individuals can become temporarily organized to form single synergistic 2-person systems during performance of a discrete joint action.</p>
</abstract>
<kwd-group><kwd>joint action</kwd>
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<kwd>motor synergies</kwd>
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<name sortKey="Riley, Michael A" sort="Riley, Michael A" uniqKey="Riley M" first="Michael A." last="Riley">Michael A. Riley</name>
<name sortKey="Romero, Veronica" sort="Romero, Veronica" uniqKey="Romero V" first="Veronica" last="Romero">Veronica Romero</name>
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