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A critical evaluation of the cognitive penetrability of posture
1Research Institute MOVE, Faculty of Human Movement Sciences, VU University Amsterdam, Amsterdam, The Netherlands.
Unlabelled:
BACKGROUND/STUDY CONTEXT: Interactions between postural control and cognitive activity as evidenced by dual-tasking studies are common, and especially pronounced in the elderly. Some authors have used this finding to suggest that posture is "cognitively penetrable."
Methods:
The authors present a critical look at the "cognitive penetrability of posture" concept. The authors first trace the notion back to Pylyshyn ( 1980 , Behavioral and Brain Sciences, 3, 111-169) in the context of visual information processing.
Results:
The authors then argue that dual-tasking interference effects do not prove that posture is penetrable by cognition.
Conclusion:
The authors conclude that it may be valid to study cognitive penetrability of posture, but that such an endeavor is served best by adopting a hierarchical model of action control.
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