Postural responses to specific types of working memory tasks

Abstract Standing participants performed working memory tasks that varied along three dimensions: (1) type of information presented (verbal or visual); (2) the primary cognitive process engaged (encoding or rehearsal); and (3) interference that targeted the working memory components (phonological lo...

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Bibliographic Details
Published inGait & posture Vol. 25; no. 3; pp. 368 - 373
Main Authors Ramenzoni, Verónica C, Riley, Michael A, Shockley, Kevin, Chiu, C.-Y. Peter
Format Journal Article
LanguageEnglish
Published England Elsevier B.V 01.03.2007
Subjects
Adolescent
Adult
Analysis of Variance
Detrended fluctuation analysis
Dual-tasking
Female
Humans
Male
Memory, Short-Term - physiology
Orthopedics
Postural control
Posture - physiology
Verbal Behavior - physiology
Visual Perception - physiology
Working memory
Dual-tasking
Detrended fluctuation analysis
Working memory
Postural control
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Summary:Abstract Standing participants performed working memory tasks that varied along three dimensions: (1) type of information presented (verbal or visual); (2) the primary cognitive process engaged (encoding or rehearsal); and (3) interference that targeted the working memory components (phonological loop and visual sketchpad) believed primarily active during rehearsal. Postural sway variability decreased during rehearsal and increased during encoding. The effects during encoding, but not during rehearsal, differed for verbal versus visual material. Changes in cognitive activity were also associated with changes in the temporal patterns of postural sway. The results suggest postural control is sensitive to the type of cognitive task performed.
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ISSN:0966-6362
1879-2219
DOI:10.1016/j.gaitpost.2006.04.014