title: Effect of stimulation repetition rate on galvanic-evoked vestibulo-collic reflexes.
abstract: CONCLUSIONS
  Taking examination time and patient compliance into consideration, we propose that 5 Hz is the optimal stimulation rate of galvanic vestibular-evoked myogenic potentials for clinical use.
  
  
  OBJECTIVE
  To evaluate the influence of stimulation repetition rate on galvanic-evoked vestibulo-collic reflexes and to propose the optimal stimulation rate for clinical use.
  
  
  METHODS
  Both ears of 30 healthy adults were tested at 5 different galvanic stimulation rates (1, 3, 5, 7 and 9 Hz) in a random order.
  
  
  RESULTS
  Responses were evident in all 60 ears only at 5 Hz; some ears showed no response at the other frequencies. The relative amplitudes in individual ears were higher at 1, 3 and 5 Hz than at 7 and 9 Hz. Comparison of the latencies of p13g and n23g showed no significant difference among the five stimulation rates.
authors.affiliation: Department of Otolaryngology, University of Tokyo, Tokyo, Japan. ozk@bio.m.u-tokyo.ac.jp
authors.forename: Hidenori
authors.initials: H
authors.lastname: Ozeki
authors.forename: Shinichi
authors.initials: S
authors.lastname: Iwasaki
authors.forename: Toshihisa
authors.initials: T
authors.lastname: Murofushi
mesh_terms: D000328:Adult; D004576:Electromyography / Q000295:instrumentation; D005260:Female; D005712:Galvanic Skin Response / Q000502:physiology*; D006801:Humans; D008297:Male; D018482:Muscle, Skeletal / Q000294:innervation; D012027:Reflex, Vestibulo-Ocular / Q000502:physiology*; D014722:Vestibule, Labyrinth / Q000502:physiology