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Longitudinal performance of a vestibular prosthesis as assessed by electrically evoked compound action potential recording

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9 Author(s)
Phillips, J.O. ; Dept. of Otolaryngology, Univ. of Washington, Seattle, WA, USA ; Shepherd, S.J. ; Nowack, A.L. ; Ling, L.
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Electrical stimulation of the vestibular end organ with a vestibular prosthesis may provide an effective treatment for vestibular loss if the stimulation remains effective over a significant period of time after implantation of the device. To assess efficacy of electrical stimulation in an animal model, we implanted 3 rhesus monkeys with a vestibular prosthesis based on a cochlear implant. We then recorded vestibular electrically evoked compound action potentials (vECAPs) longitudinally in each of the implanted canals to see how the amplitude of the response changed over time. The results suggest that vECAPs, and therefore electrical activation of vestibular afferent fibers, can remain largely stable over time following implantation.

Published in:

Engineering in Medicine and Biology Society (EMBC), 2012 Annual International Conference of the IEEE

Date of Conference:

Aug. 28 2012-Sept. 1 2012