title: [Cervical vestibular evoked myogenic potential elicited by different types air conducted sounds among normal young Chinese people].
abstract: OBJECTIVE
  To observe waveform difference among cervical vestibular evoked myogenic potentials (cVEMP) elicited with different types of air conducted sound in normal young Chinese subjects.
  
  
  METHODS
  Twenty adult volunteers (40 ears) were recruited as research subjects including 10 males and 10 females aged between 19 and 30.500 Hz Tone Burst, 1000 Hz Tone Burst and Click were employed as stimulus for conventional air conducted sound-cVEMP (ACS-cVEMP) examinations in bilateral ears of each subject. The response rate, threshold, P1 latency, N1 latency, P1-N1 latency interval, amplitude and inter-aural asymmetry were recorded and compared among groups.
  
  
  RESULTS
  The response rate was 97.5% in 500Hz Tone Burst (39/40), 87.5% in 1 000Hz Tone Burst (35/40)and 67.5% in Click (27/40), There were no statistically significant difference between 500Hz Tone Burst and 1000Hz Tone Burst (P > 0.05) but there were statistically significant difference between click and the other groups (P < 0.05). We collected the waveform parameters (the threshold, P1 latency, N1 latency, P1-N1 latency interval, amplitude) which had statistically significant difference between 500 Hz Tone Burst and the other groups (P < 0.05). The inter-aural asymmetrys had no statistically significant differents among groups.
  
  
  CONCLUSIONS
  The response rate and parameter could be affected by different types of air conducted sound in normal young Chinese subjects. 500 Hz Tone Burst was the best stimulus of type what we have known.
authors.forename: Yintong
authors.initials: Y
authors.lastname: Yang
authors.forename: Qing
authors.initials: Q
authors.lastname: Zhang
authors.forename: Rui
authors.initials: R
authors.lastname: Zhang
authors.forename: Yanfei
authors.initials: Y
authors.lastname: Chen
authors.forename: Caiqin
authors.initials: C
authors.lastname: Wu
authors.forename: Xiaohui
authors.initials: X
authors.lastname: Kou
authors.forename: Demin
authors.initials: D
authors.lastname: Kong
authors.forename: Xiaohong
authors.initials: X
authors.lastname: Jing
authors.forename: Min
authors.initials: M
authors.lastname: Xu
mesh_terms: D000328:Adult; D044466:Asian People; D005260:Female; D006801:Humans; D008297:Male; D009333:Neck; D058585:Vestibular Evoked Myogenic Potentials; D014722:Vestibule, Labyrinth / Q000502:physiology*; D055815:Young Adult