The influence of electrode geometry on the electrically evoked auditory brain stem response
AuthorShepherd, R. K.; Hatsushika, S.; Clark, Graeme M.
Source TitleAmerican Association of Speech and Hearing Meeting
Document TypeConference Paper
CitationsShepherd, R. K., Hatsushika, S., & Clark, G. M. (1988). The influence of electrode geometry on the electrically evoked auditory brain stem response. In American Association of Speech and Hearing Meeting, United States of America.
Access StatusOpen Access
The electrically-evoked auditory brainstem response (EABR) consists of a series of far-field potentials that reflect synchronous neural activity within the auditory brainstem in response to a transient electrical stimulus. The EABR appears relatively simply organized in terms of its amplitude and latency behaviour. The growth in amplitude of wave IV of the EABR, for example, reflects changes in the amplitude of the electrically-evoked VIII nerve compound action potential as a function of stimulus intensity. In addition, single unit population studies have shown a monotonic relationship between the growth in EABR amplitude and the number of nerve fibres being stimulated (Merzenich and White, 1977). The EABR can therefore, provide an insight into the response of the auditory nerve to electrical stimulation. We have used this technique to investigate the efficacy of electrical stimulation of the auditory nerve using a variety of stimulating electrode geometries.
Keywordsotolaryngology; electrode geometry; auditory brain stem response; electrical stimulation; auditory nerve
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- Graeme Clark Collection