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Adaptive utilization of optical variables during postural and suprapostural dual-task performance: Comment on Stoffregen, Smart, Bardy, and Pagulayan (1999)
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UNSPECIFIED (2004) Adaptive utilization of optical variables during postural and suprapostural dual-task performance: Comment on Stoffregen, Smart, Bardy, and Pagulayan (1999). JOURNAL OF EXPERIMENTAL PSYCHOLOGY-HUMAN PERCEPTION AND PERFORMANCE, 30 (1). pp. 28-38. doi:10.1037/0096-1523.30.1.28
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Official URL: http://dx.doi.org/10.1037/0096-1523.30.1.28
Abstract
T. A. Stoffregen, L. J. Smart, B. G. Bardy. and R. J. Pagulayan (1999) combined a postural task (upright stance) with a suprapostural task (visual fixation) to show that sway variability was not driven by optic flow in a task-independent manner (autonomous control) but governed by the demands of the suprapostural task (facilitatory control). The present study used a novel combination of Stoffregen et al.'s task conditions but obtained clear evidence of autonomous control and no indication of facilitatory control. The theoretical adequacy of the stabilization-by-looking versus stabilization-of-looking contrast was examined, as was emerging evidence that posture control and common cognitive tasks place concurrent demands on the same capacity-limited resources. An adaptive resource-sharing view of postural-suprapostural multitasking was proposed as an alternative to both the autonomous- and facilitatory-control views.
Item Type: | Journal Item | ||||
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Subjects: | B Philosophy. Psychology. Religion > BF Psychology | ||||
Journal or Publication Title: | JOURNAL OF EXPERIMENTAL PSYCHOLOGY-HUMAN PERCEPTION AND PERFORMANCE | ||||
Publisher: | AMER PSYCHOLOGICAL ASSOC | ||||
ISSN: | 0096-1523 | ||||
Official Date: | February 2004 | ||||
Dates: |
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Volume: | 30 | ||||
Number: | 1 | ||||
Number of Pages: | 11 | ||||
Page Range: | pp. 28-38 | ||||
DOI: | 10.1037/0096-1523.30.1.28 | ||||
Publication Status: | Published |
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