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Effects of explicit sway-minimization on postural-suprapostural dual-task performance
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UNSPECIFIED (2004) Effects of explicit sway-minimization on postural-suprapostural dual-task performance. HUMAN MOVEMENT SCIENCE, 23 (1). pp. 1-20. doi:10.1016/j.humov.2004.03.003 ISSN 0167-9457.
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Official URL: http://dx.doi.org/10.1016/j.humov.2004.03.003
Abstract
Participants performed a visual search task under immersive visualization conditions while standing in open or closed stance. In the combined instruction condition, participants were asked to minimize their sway while they performed the search task, and in the search-only condition, they were advised that sway was not of interest, and they were asked to focus their efforts on performing the search task. Regardless of instructions, participants swayed more and made more errors as search load increased. Participants also succeeded in reducing their sway when asked to do so. While search in closed stance tended to be faster than in open stance under search-only instructions, this pattern reversed significantly under combined instructions. We suggest that neither the facilitatory control hypothesis nor any resource-competition model of postural-suprapostural dual-tasking can fully account for the observed interplay of task-facilitation and task-interference effects. We offer adaptive resource-sharing as an alternative to these theories. (C) 2004 Elsevier B.V. All rights reserved.
Item Type: | Journal Article | ||||
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Subjects: | R Medicine > RC Internal medicine > RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry B Philosophy. Psychology. Religion > BF Psychology G Geography. Anthropology. Recreation > GV Recreation Leisure |
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Journal or Publication Title: | HUMAN MOVEMENT SCIENCE | ||||
Publisher: | ELSEVIER SCIENCE BV | ||||
ISSN: | 0167-9457 | ||||
Official Date: | June 2004 | ||||
Dates: |
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Volume: | 23 | ||||
Number: | 1 | ||||
Number of Pages: | 20 | ||||
Page Range: | pp. 1-20 | ||||
DOI: | 10.1016/j.humov.2004.03.003 | ||||
Publication Status: | Published |
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