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Experimental Brain Research

, Volume 233, Issue 3, pp 691–699 | Cite as

How does high-frequency sound or vibration activate vestibular receptors?

  • I. S. CurthoysEmail author
  • J. W. Grant
Mini-Review

Abstract

The mechanism by which vestibular neural phase locking occurs and how it relates to classical otolith mechanics is unclear. Here, we put forward the hypothesis that sound and vibration both cause fluid pressure waves in the inner ear and that it is these pressure waves which displace the hair bundles on vestibular receptor hair cells and result in activation of type I receptor hair cells and phase locking of the action potentials in the irregular vestibular afferents, which synapse on type I receptors. This idea has been suggested since the early neural recordings and recent results give it greater credibility.

Keywords

Otolith Utricular Saccular VEMP Hair cell 

Abbreviations

ACS

Air-conducted sound

BCV

Bone-conducted vibration

EMG

Electromyogram

Fz

The location on the forehead in the midline at the hairline

Fz BCV

Bone-conducted vibration delivered to Fz

HCB

Hair cell bundle

cVEMP

Cervical vestibular-evoked myogenic potential

oVEMP

Ocular vestibular-evoked myogenic potential

n10

The initial negative potential of the oVEMP response at a latency of around 10 ms

Notes

Acknowledgments

We are grateful for the support of NH&MRC of Australia (Grants 632746, 1046826) and the Garnett Passe and Rodney Williams Memorial Foundation. We thank Ann Burgess for her excellent help.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  1. 1.Vestibular Research Laboratory, School of Psychology A 18University of SydneySydneyAustralia
  2. 2.Department of Biomedical Engineering and MechanicsVirginia TechBlacksburgUSA

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