Document Detail


Time dependence of coupling in frequency-scaled bimanual coordination.
MedLine Citation:
PMID:  21194554     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Prior research has shown that fluctuations in the relative phase of bimanual coordination do not reflect a white Gaussian noise process. The present study furthered the examination of time-dependent properties in bimanual coordination by comparing the magnitude of relative phase variability and the degree of effector independence within the time domain. The original Kelso (1984) [10] bimanual frequency-scaling protocol was reproduced in which phase transitions from antiphase to in-phase were induced with increasing movement frequency. The results showed that as movement frequency was scaled-up the amount of relative phase variability increased and the effector movements became more dependent prior to the transition. This is consistent with previous modeling showing that stronger effector coupling can prevent the occurrence of phase transitions when long range correlations in relative phase are present. It appears that, as movement frequency is scaled up, increases in effector coupling strength minimize loss of pattern stability and delay the onset of phase transitions.
Authors:
Eric G James; Peter C M Molenaar; Karl M Newell
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Publication Detail:
Type:  Journal Article     Date:  2010-12-29
Journal Detail:
Title:  Neuroscience letters     Volume:  490     ISSN:  1872-7972     ISO Abbreviation:  Neurosci. Lett.     Publication Date:  2011 Feb 
Date Detail:
Created Date:  2011-02-01     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7600130     Medline TA:  Neurosci Lett     Country:  Ireland    
Other Details:
Languages:  eng     Pagination:  156-60     Citation Subset:  IM    
Copyright Information:
Copyright © 2011 Elsevier Ireland Ltd. All rights reserved.
Affiliation:
Department of Health and Human Performance, University of Texas at Brownsville, 2.638 REK Building, 80 Fort Brown, Brownsville, TX 78526, USA.
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