Responses evoked by STBs in patients were compared with responses evoked by clicks. Short tone bursts of 0.5 kHz evoked the largest responses, while STBs of 2 kHz evoked the smallest. In patients with vestibulocochlear disorders, responses to STBs of 0.5 kHz were similar to responses evoked by clicks. Responses were present in patients with total or near-total hearing loss and intact vestibular function. Conversely, patients with preserved hearing but with absent or severely decreased vestibular function had absent or significantly decreased myogenic potentials evoked by STBs.
Myogenic potentials evoked by STBs are also probably of vestibular origin.
Arch Otolaryngol Head Neck Surg. Accepted for publication January 8, 1999. All rights reserved.