Article
Properties of binaural vestibular evoked myogenic potentials elicited with air-conducted and bone-conducted tone bursts
International Journal of Audiology
(2006)
Abstract
The purpose of this investigation was to compare the effects of monaural and binaural stimulation on unilaterally-measured vestibular evoked myogenic potential (VEMP) magnitude and latency. The subjects were eighteen normal-hearing adults with no history of vestibular disease. Monaural VEMPs were acquired with air-conducted (AC) and bone-conducted (BC) 500 Hz tone bursts presented at 95 dB nHL and 70 dB nHL, respectively. These stimuli were simultaneously paired with 95 dB nHL contralateral tone bursts at 250, 500, 750, or 1000 Hz during acquisition of binaural VEMPs. Results indicated that AC-VEMP relative magnitudes decreased in each of the binaural conditions compared to the monaural condition. However, no changes in relative magnitude between conditions occurred for BC-VEMPs. Similar latencies were observed for monaural and binaural VEMPs. Differences in bilateral interaction seen between the AC-VEMP and BC-VEMP conditions are consistent with modification of sound transmission through the ear during presentations of binaural sound.
Keywords
- Bone conduction,
- Electromyography,
- Motor evoked potentials,
- Saccule,
- Sternocleidomastoid muscle,
- Vestibular evoked myogenic potentials,
- Vestibular function tests
Disciplines
Publication Date
2006
DOI
10.1080/14992020600937444
Publisher Statement
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Citation Information
Shaum P. Bhagat. "Properties of binaural vestibular evoked myogenic potentials elicited with air-conducted and bone-conducted tone bursts" International Journal of Audiology Vol. 45 Iss. 10 (2006) p. 609 - 616 ISSN: 1708-8186 Available at: http://works.bepress.com/shaum-bhagat/21/