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41
A Comparison of the Subjective Visual Vertical across Rotational Chair Systems and Off-Axis Rotation Protocols
In: ETSU Faculty Works (2011)
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42
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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43
Head Injury and Blast Exposure: Vestibular Consequences
In: ETSU Faculty Works (2011)
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44
The Effect of Age on the Vestibular Evoked Myogenic Potential and Sternocleidomastoid Muscle Tonic Electromyogram Level
In: ETSU Faculty Works (2011)
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45
The Ocular Vestibular Evoked Myogenic Potential
In: ETSU Faculty Works (2011)
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46
Normative Data for the Subjective Visual Vertical Test during Centrifugation
In: ETSU Faculty Works (2011)
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47
Bone Conduction Ocular Vestibular Evoked Myogenic Potentials
In: ETSU Faculty Works (2011)
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48
The Effect of Noise Exposure on the Cervical Vestibular Evoked Myogenic Potential
In: ETSU Faculty Works (2011)
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49
The Ocular Vestibular Evoked Myogenic Potential
In: ETSU Faculty Works (2010)
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50
Tests of Otolith Function
In: ETSU Faculty Works (2010)
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51
Normative Data for the Subjective Visual Vertical Test during Centrifugation
In: ETSU Faculty Works (2010)
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52
The Ocular Vestibular Evoked Myogenic Potential
In: ETSU Faculty Works (2010)
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53
Normative Data of the Subjective Visual Vertical Test for Vestibular Assessment
In: ETSU Faculty Works (2009)
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54
Monothermal Caloric Screening Test Performance: A Relative Operating Characteristic Curve Analysis
In: ETSU Faculty Works (2009)
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55
“Monothermal caloric screening test performance: A relative operating characteristic (ROC) curve analysis
In: ETSU Faculty Works (2009)
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56
Ocular Vestibular Evoked Myogenic Potentials: Preliminary Observations
In: ETSU Faculty Works (2009)
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57
ASHA Perspectives: Clinical Assessment of Otolith Function
In: ETSU Faculty Works (2009)
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58
Subjective Visual Vertical Test
In: ETSU Faculty Works (2009)
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59
Clinical Assessment of Otolith Function
In: ETSU Faculty Works (2009)
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60
Ocular Vestibular Evoked Myogenic Potentials
In: ETSU Faculty Works (2009)
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