Mikaela L Frechette, Jacob J Sosnoff, Manuel Enrique Hernandez, Laura A Rice
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Environmental Influence on Cognitive-Motor Interaction During Wheelchair Propulsion.
To determine the influence of environmental complexity on cognitive-motor interaction during wheelchair propulsion. Fourteen participants completed two single- to dual-task trials of Serial-7 Subtraction Task and four environments varying in complexity. Differences in cognitive and motor function were determined through paired samples t-tests and percent changes (dual-task costs [DTCs]) were calculated. Within-subjects, repeated-measures ANOVAs were performed to determine differences in DTCs across environments. Cognitive function was maintained from the single- to dual-task trial in all environments (p ≥ 0.16) and yielded similar DTCs across environments (p = 0.80). Compromised motor function was observed in all environments (p ≤ 0.03) and yielded similar DTCs across environments (p ≥ 0.37). Wheelchair propulsion is attentionally demanding; however, environmental complexity did not exacerbate cognitive or motor dual-task costs.
期刊介绍：
The Journal of Motor Behavior, a multidisciplinary journal of movement neuroscience, publishes articles that contribute to a basic understanding of motor control. Articles from different disciplinary perspectives and levels of analysis are encouraged, including neurophysiological, biomechanical, electrophysiological, psychological, mathematical and physical, and clinical approaches. Applied studies are acceptable only to the extent that they provide a significant contribution to a basic issue in motor control. Of special interest to the journal are those articles that attempt to bridge insights from different disciplinary perspectives to infer processes underlying motor control. Those approaches may embrace postural, locomotive, and manipulative aspects of motor functions, as well as coordination of speech articulators and eye movements. Articles dealing with analytical techniques and mathematical modeling are welcome.
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