Tabak, S.

movement subject saccade response velocity vestibular frequency group patient vor gain head movements delay phase oscillation target result value condition eye movements control group range direction suppression darkness control reflex chapter method difference rotation signal function head movement head velocities technique perturbation vestibular loss panel experiment 20 hz saccadic amplitude change analysis helmet gaze saccades measurement torque frequency range right acceleration head velocity step displacements vestibulo-ocular trend position collewijn trial head oscillation displacement head oscillations relation duration system vor suppression variability vestibulo-ocular reflex ld subjects lesion condition darkness 0.5 degree shift tabak effect acta otolaryngol motor brain mechanism otolaryngol