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Air-conducted ocular vestibular-evoked potential
Saumya Pandey1, Sangeeta Gupta1, Ramashankar Rath2
1Department of Physiology, All India Institute of Medical Sciences (AIIMS) Gorakhpur (Uttar Pradesh), India.
Bioinformation
|December 15, 2025
Summary
The ocular vestibular-evoked myogenic potential (O-VEMP) test shows larger amplitudes with tone bursts and in a supine position. These findings are crucial for accurate clinical interpretation of O-VEMP results.
Area of Science:
- Audiology
- Neuroscience
- Ophthalmology
Background:
- The ocular vestibular-evoked myogenic potential (O-VEMP) test is clinically valuable.
- Understanding stimulus characteristics is key for accurate O-VEMP interpretation.
Purpose of the Study:
- To investigate the effects of different stimulus types (tone bursts vs. clicks) and participant positions (sitting vs. supine) on O-VEMP responses.
- To identify variables influencing O-VEMP outcomes in healthy individuals.
Main Methods:
- 60 healthy participants (18-60 years) were tested.
- Air-conducted sound stimuli (tone bursts and clicks) were delivered.
- O-VEMP responses were recorded in both sitting and supine positions.
Main Results:
- Tone burst stimuli yielded significantly larger O-VEMP amplitudes and lower thresholds compared to clicks (p=0.005, p=0.0008 for amplitudes; p=0.005, p=0.03 for thresholds).
- The supine position resulted in significantly larger O-VEMP amplitudes than the sitting position (p<0.001).
Conclusions:
- Stimulus characteristics, specifically tone bursts, and participant positioning, particularly the supine position, significantly impact O-VEMP amplitudes and thresholds.
- Clinicians must consider these factors, along with age and gender, for precise O-VEMP test interpretation.
