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vestibular center of pressure muscle tone

Míriam Raquel Meira Mainenti, Líliam Fernandes De Oliveira, Marco Antonio De Melo Tavares De Lima, Jurandir Nadal
Posture control is mediated by the integration between the environment information (coming from the visual, somatosensory and vestibular systems) and the efferent organs (motoneurons and muscles). The influence of the first systems on body sway signals is already documented in the literature. Few studies are focused in the relationship between stabilometric signals (objective measure of stability) and vestibular stimulation, due to the difficulty in achieving a specific and independent stimulation of this system...
August 2007: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
Fay B Horak, Frantisek Hlavacka
This study explores whether galvanic vestibular stimulation can alter automatic postural muscle responses triggered 100 ms after surface translations. Our previous study concluded that a step of bipolar, galvanic vestibular stimulation delivered 500 ms prior to a platform translation tilted the internal representation of vertical because subjects' final center of foot pressure and center of mass equilibrium position shifted toward the anode and this tilt was larger than the sum of effects for platform translations and galvanic alone...
May 2002: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
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