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TitleDescriptionSubject
1 Caloric testingCaloric testing is a peripheral vestibular test which takes advantage of the fact that the labyrinth is sensitive to temperature changes. Warm stimulation causes excitation of the semicircular canals while cold stimulation causes inhibition of the semicircular canals. Caloric testing is performed by...Normal VOR, Abnormal VOR, Vestibular Lab Testing, Calorics
2 ENG, VNG, & VOGElectronystagmography (ENG), and videonystagmography (VNG) or videooculography (VOG) are a collection of tests of eye movements that are performed either using surface electrodes around the eye (ENG) or with video goggles (VNG, VOG) (Figure 1). For all clinical intents and purposes, VNG and VOG ar...Vestibular lab testing, ENG, VNG, & VOG
3 Rotary Chair TestingRotary chair testing includes rotation around a vertical axis, and evaluates the horizontal semicircular canal vestibulo-ocular reflex (VOR). The patient sits in a mechanized chair with the head secured in a neutral position or in 30 degree forward flexion (to better isolate the horizontal canals)....Normal VOR, Abnormal VOR, Vestibular Lab Testing, Rotary Chair
4 Summary of the most common audio-vestibular testingChart describing common audio-vestibular testing.Vestibular lab testing
5 The most common audiovestibular laboratory tests, and the specific conditions in which they may assist in making or supporting the diagnosisVN = vestibular neuritis; VM = vestibular migraine; VP = vestibular paroxysmia; vHIT = video head impulse test; VNG = video-nystagmography; ENG = electronystagmography; VOG = video-oculography; VEMPs = vestibular evoked myogenic potentials; SCDS = superior canal dehiscence syndrome; BPPV = benign pa...Vestibular Examination, Vestibular Lab Testing
6 Vestibular evoked myogenic potentials (VEMPs)Vestibular-evoked myogenic potentials (VEMP) are electromyographic potential reflex tests that reflect the function of the saccule in cervical VEMP and the utricle in ocular VEMP.1 In the cervical VEMP an inhibitory reflex is evoked from the saccule to the sternocleidomastoid ipsilateral to the stim...Vestibular lab testing, Vestibular Evoked Myogenic Potentials (VEMPs)
7 Video head impulse testingThe video head impulse test (vHIT) is a clinical assessment technique used to assess the function of the semicircular canals-the angular acceleration detectors-which initiate the vestibulo-ocular reflex (VOR). The HIT and vHIT are performed similarly (see assessment of VOR using HIT video LINK), alt...Normal VOR, Abnormal VOR, Vestibular Lab Testing, Video Head Impulse Testing
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