The visual feed-back gain influence upon the regulation of the upright posture in man.
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Biomechanical Phenomena↗
Biomedical subjects
F Hlavacka
Publications and source records attributed to F Hlavacka.
First derivative of the stabilogram and posture control in visual feed-back conditions in man.
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Biomechanical Phenomena↗
Postural responses evoked by sinusoidal galvanic stimulation of the labyrinth. Influence of head position.
In 15 healthy subjects we studied body sway reactions to sinusoidal 0.3 Hz binaural bipolar galvanic current up to 2 mA under three conditions. With the head forward and eyes closed, there is only a periodic lateral displacement of the centre of gravity, following the stimulation with a phase lag. In two other conditions, the head turned to the left or to the right without trunk torsion, the direction of sway was modified in such a way that there were mainly anteroposterior movements. It is thought that this experiment shows the modulatory influence of neck afferents on the direction of vestibulospinal motor effects in man.
Adult↗