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21
Voxel-Based Morphometry (VBM) in Individuals with Blast/Tbi-Related Balance Dysfunction
In: ETSU Faculty Works (2014)
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22
Slow Harmonic Acceleration: Normal Values & the Effect of Age
In: ETSU Faculty Works (2014)
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23
Patterns of Vestibular Findings Among Veterans Presenting with Dizziness to the Vestibular Clinic
In: ETSU Faculty Works (2014)
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24
The Video Head Impulse Test: Normal Reference Intervals & Test-Retest Reliability
In: ETSU Faculty Works (2014)
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25
Intra- and Inter-Examiner Reliability of the Video Head Impulse Test
In: ETSU Faculty Works (2014)
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26
Effects of Blast on Auditory & Vestibular Function
In: ETSU Faculty Works (2014)
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27
The Video Head Impulse Test
In: ETSU Faculty Works (2013)
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28
The Video Head Impulse Test
In: ETSU Faculty Works (2013)
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29
Vestibular Evoked Myogenic Potentials
In: ETSU Faculty Works (2013)
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30
A Benign Paroxysmal Positional Vertigo Specialty Clinic: A Model for Va Health Care
In: ETSU Faculty Works (2013)
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31
Vestibular-Related Traumatic Brain Injury: A Preliminary Voxel-Based Morphometry Analysis
In: ETSU Faculty Works (2013)
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32
Update on the Clinical Utility of Vestibular Evoked Myogenic Potentials
In: ETSU Faculty Works (2013)
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33
The Video Head Impulse Test
In: ETSU Faculty Works (2012)
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34
Comparative Properties of Cervical and Ocular Vestibular Evoked Myogenic Potentials
In: ETSU Faculty Works (2012)
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35
A Benign Paroxysmal Positional Vertigo Specialty Clinic
In: ETSU Faculty Works (2012)
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36
The Effect of Noise Exposure on the Cervical Vestibular Evoked Myogenic Potential
In: ETSU Faculty Works (2012)
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37
Normative Data and Test-Retest Reliability of the Synapsys Video Head Impulse Test
In: ETSU Faculty Works (2012)
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38
The Effect of Age on the Subjective Visual Vertical During Bilateral and Unilateral Centrifugation
In: ETSU Faculty Works (2012)
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39
Auditory Steady State Responses Recorded in Multitalker Babble
In: ETSU Faculty Works (2011)
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40
Effects of Stimulus and Recording Parameters on the Air Conduction Ocular Vestibular Evoked Myogenic Potential
In: ETSU Faculty Works (2011)
Abstract: Background: Vestibular evoked myogenic potentials (VEMPs) have been recorded from the sternocleidomastoid muscle (cervical VEMP or cVEMP) and more recently from the eye muscles (ocular VEMP or oVEMP) in response to air conduction and bone conduction stimuli. Both cVEMPs and oVEMPs are mediated by the otoliths and thereby provide diagnostic information that is complementary to videonystagmography and rotational chair tests. In contrast to the air conduction cVEMP, which originates from the saccule/inferior vestibular nerve, recent evidence suggests the possibility that the air conduction oVEMP may be mediated by the utricle/superior vestibular nerve. The oVEMP, therefore, may provide complementary diagnostic information relative to the cVEMP. There are relatively few studies, however, that have quantified the effects of stimulus and recording parameters on the air conduction oVEMP, and there is a paucity of normative data. Purpose: To evaluate the effects of several stimulus and recording parameters on the air conduction oVEMP and to establish normative data for clinical use. Research Design: A prospective repeated measures design was utilized. Study Sample: Forty-seven young adults with no history of neurologic disease, hearing loss, middle ear pathology, open or closed head injury, cervical injury, or audiovestibular disorder participated in the study. Data Collection and Analysis: The effects of stimulus frequency, stimulus level, gaze elevation, and recording electrode location on the amplitude and latency of the oVEMP for monaural air conduction stimuli were assessed using repeated measures analyses of variance in an initial group of 17 participants. The optimal stimulus and recording parameters obtained in the initial group were used subsequently to obtain oVEMPs from 30 additional participants. Results: The effects of stimulus frequency, stimulus level, gaze elevation, and electrode location on the response prevalence, amplitude, and latency of the oVEMP for monaural air conduction stimuli were significant. The maximum N1-P1 amplitude and response prevalence were obtained for contralateral oVEMPs using a 500 Hz tone burst presented at 125 dB peak SPL during upward gaze at an elevation of 30°. Conclusions: The optimal stimulus and recording parameters quantified in this study were used to establish normative data that may be useful for the clinical application of the air conduction oVEMP.
Keyword: and Ocular Physiology; Audiology and Speech-Language Pathology; Medical Anatomy; Medical Pathology; Medical Physiology; Musculoskeletal; Neural; ocular reflexes; Speech and Hearing Science; Speech Pathology and Audiology
URL: https://dc.etsu.edu/etsu-works/1783
https://doi.org/10.3766/jaaa.22.7.7
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