Thresholds for vestibular-evoked myogenic potentials (VEMPs) produced by impulsive transmastoid acceleration.
Objective: To evaluate methods for estimating thresholds of vestibular evoked myogenic potentials (VEMPs) and ocular VEMPs (OVEMPs) produced by impulsive transmastoid acceleration (ITA). Design: VEMPs and OVEMPs were obtained simultaneously from subjects in supine posture with both head and eyes e...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Taylor & Francis
2013
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| Subjects: | |
| Online Access: | https://repository.londonmet.ac.uk/5916/1/2013_Paillard-et-al_IJA.pdf |
| Summary: | Objective:
To evaluate methods for estimating thresholds of vestibular evoked myogenic potentials (VEMPs) and ocular VEMPs (OVEMPs) produced by impulsive transmastoid acceleration (ITA). Design: VEMPs and OVEMPs were obtained simultaneously from subjects in supine posture with both head and eyes elevated. Thresholds to ITA were measured using four different response identification methods.
Study sample:
Twelve adult subjects with no history of auditory or vestibular deficits.
Results:
VEMP and OVEMP thresholds were found within the range of -8 to -26 dB re 0.2 g, with overall VEMP thresholds being lower than OVEMP thresholds by average of 3 – 10 dB, depending on the method used.
Conclusion:
VEMPs can be obtained at lower ITA stimulation levels than OVEMPs. Threshold values depend on the method used to defi ne response presence. |
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