Abstract Background The vestibular system can perceive sound at high intensity levels. recording of evoked myogenic potentials (VEMPs) is one the clinical techniques that capture when activated by sound. In healthy individuals, it has been demonstrated VEMP thresholds are lower using low-frequency stimuli, particularly 500 Hz tone burst. Aging affects frequency tuning, causing shift to higher f...

BACKGROUND Vestibular neuritis (VN) is commonly diagnosed by demonstration of unilateral vestibular failure, as unilateral loss of caloric response. As this test reflects the function of the superior part of the vestibular nerve only, cases of pure inferior nerve neuritis will be lost. CASE PRESENTATIONS We describe three patients with symptoms suggestive of VN, but normal calorics. All 3 had...

OBJECTIVE To characterize the physiologic nature of the vestibular dysfunction that occurs with the normative aging process. STUDY DESIGN Cross-sectional study. SETTING Tertiary care academic medical center. PATIENTS Fifty individuals age 70 years and above. INTERVENTIONS Head thrust dynamic visual acuity testing and cervical and ocular vestibular-evoked myogenic potential (VEMP) testin...

Outcome measures: Sound-evoked myogenic potentials in response to STBs were recorded with surface electrodes over each SCM. Responses evoked by STBs in patients were compared with responses evoked by clicks. Results: In all normal subjects, STBs (0.5, 1, and 2 kHz) evoked biphasic responses on the SCM ipsilateral to the stimulated ear; the same was true for clicks. Short tone bursts of 0.5 kHz ...