The benefit of knowledge: postural response modulation by foreknowledge of equilibrium perturbation in an upper limb task
Juan M. Castellote,
Markus Kofler,
Andreas Mayr
Abstract:For whole-body sway patterns, a compound motor response following an external stimulus may comprise reflexes, postural adjustments (anticipatory or compensatory), and voluntary muscular activity. Responses to equilibrium destabilization may depend on both motor set and a subject`s expectation of the disturbing stimulus. To disentangle these influences on lower limb responses, we studied a model in which subjects (n = 14) were suspended in the air, without foot support, and performed a fast unilateral wrist ext… Show more
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