| Simultaneous specification of amplitudes and directions of bimanual reversal movements. | |
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MedLine Citation:
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PMID: 16801320 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Intermanual interactions are modulated by task requirements in the course of motor preparation. In particular, amplitude coupling is strong when identical amplitudes are specified concurrently for the 2 hands but relaxed when different amplitudes are specified. Similarly, directional coupling is symmetric when symmetric directions are specified concurrently but turns to parallel when parallel directions are specified. Here, the author investigated whether the modulations of amplitude coupling and directional coupling in the course of motor preparation are independent or interact. Application of the timed-response procedure, which enables one to manipulate the time available for motor preparation, in 9 participants revealed a weakly interactive pattern. Directional coupling tended to be reduced when different rather than same amplitudes were specified concurrently, and amplitude coupling tended to be reduced when parallel rather than symmetric directions were specified concurrently. In general, interactive effects were also apparent in the rates at which directions and amplitudes were specified. Those observations are consistent with the notion that intermanual amplitude and direction interference are mediated by different but partially overlapping neural structures. |
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Authors:
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Herbert Heuer |
Publication Detail:
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Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Journal of motor behavior Volume: 38 ISSN: 0022-2895 ISO Abbreviation: J Mot Behav Publication Date: 2006 Jul |
Date Detail:
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Created Date: 2006-06-27 Completed Date: 2006-11-07 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0236512 Medline TA: J Mot Behav Country: United States |
Other Details:
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Languages: eng Pagination: 285-98 Citation Subset: IM |
Affiliation:
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Institut für Arbeitsphysiologie an der Universität Dortmund, Ardeystrasse 67, 44139 Dortmund, Germany. heuer@ifado.de |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Female Functional Laterality / physiology* Humans Intention Male Motor Skills / physiology* Movement / physiology Reaction Time / physiology* Reference Values Reversal Learning / physiology* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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