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. Author manuscript; available in PMC: 2017 May 1.
Published in final edited form as: Hear Res. 2016 Mar 10;335:118–127. doi: 10.1016/j.heares.2016.03.002

Table 1.

Summary of the effects of noise exposure on vestibular hair cell stereocilia bundle density, vestibular afferent activity and VOR.

End organs Stereocilia bundle loss Vestibular afferent baseline activity Vestibular afferent sensitivity to rotation Gain Vestibular afferent sensitivity to rotation Phase VOR
Regular Irregular Regular Irregular Regular Irregular
HC 50% No change No change 34% increase No change Decreased phase lag Decreased phase lead No change
AC 61% 14% decrease No change 31% decrease No change No change No change –
PC No change – No change – – – – –
Saccule 35–47% 17% decrease (SO) No change – – – – –
Utricle 43–48% No change