Attentional Demands of Perturbation Evoked Compensatory Stepping Responses: Examining Cognitive-Motor Interference to Large Magnitude Forward Perturbations

The authors examined the cognitive-motor interference of reactive balance control under dual-task condition in young healthy adults. Sudden large forward perturbations were delivered in stance position with (dual-task) and without (single-task balance) a working memory task. This task was also perfo...

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Bibliographic Details
Published in:Journal of motor behavior 2015-05, Vol.47 (3), p.201-210
Main Authors: Patel, Prakruti J., Bhatt, Tanvi
Format: Article
Language:English
Subjects:
Adult
attention
Attention - physiology
Biomechanics
Cognition & reasoning
Cognition - physiology
dual-task
Female
Humans
Male
Memory
Memory, Short-Term - physiology
Motor ability
Movement
Neuropsychological Tests
Postural Balance - physiology
Posture
Posture - physiology
Psychomotor Performance - physiology
reactive balance
slips
Young Adult
young adults
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Summary:The authors examined the cognitive-motor interference of reactive balance control under dual-task condition in young healthy adults. Sudden large forward perturbations were delivered in stance position with (dual-task) and without (single-task balance) a working memory task. This task was also performed in quiet stance (single-task cognition). Dual tasking significantly reduced postural stability and compensatory step length, and delayed the reaction time. The significant linear correlation between postural stability and compensatory step length present in the single-task balance condition was absent in the dual-task condition. Performance on the cognitive task also declined under the dual-task condition. Our results indicate a mutual cognitive-motor interference between the reactive balance and the working memory task suggesting a potential overlap between attentional resources allocated for these two tasks.
ISSN:0022-2895
1940-1027
DOI:10.1080/00222895.2014.971700