Vestibular function testing.
OBJECTIVE
This review provides an overview of vestibular function testing and highlights the new techniques that have emerged during the past 5 years.


RESULTS
Since the introduction of video-oculography as an alternative to electro-oculography for the assessment of vestibular-induced eye movements, the investigation of the utricle has become a part of vestibular function testing, using unilateral centrifugation. Vestibular evoked myogenic potentials have become an important test for assessing saccular function, although further standardization and methodological issues remain to be clarified. Galvanic stimulation of the labyrinth also is an evolving test that may become useful diagnostically.


CONCLUSIONS
A basic vestibular function testing battery that includes ocular motor tests, caloric testing, positional testing, and earth-vertical axis rotational testing focuses on the horizontal semicircular canal. Newer methods to investigate the otolith organs are being developed. These new tests, when combined with standard testing, will provide a more comprehensive assessment of the complex vestibular organ.
Wuyts
Floris L
FL
Antwerp University Research Center for Equilibrium and Aerospace, Department of ENT, University of Antwerp, Antwerp, Belgium. Floris.Wuyts@ua.ac.be
Furman
Joseph
J
Vanspauwen
Robby
R
Van de Heyning
Paul
P
D004568:Electrodiagnosis / Q000379:methods; D005133:Eye Movements / Q000502:physiology; D006801:Humans; D009801:Oculomotor Muscles / Q000294:innervation / Q000502:physiology; D010812:Physical Stimulation / Q000379:methods; D004856:Postural Balance / Q000502:physiology*; D012027:Reflex, Vestibulo-Ocular / Q000502:physiology*; D015837:Vestibular Diseases / Q000175:diagnosis* / Q000503:physiopathology; D014724:Vestibular Function Tests / Q000379:methods / Q000639:trends*; D014722:Vestibule, Labyrinth / Q000033:anatomy & histology / Q000502:physiology*