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Vestibular Effects of Electrical Stimulation of the CochleaMonitored in the Awake Primate
Joseph Kimm, PhD;
Jeffery A. Winfield;
Dwight Sutton, PhD;
James A. Donaldson, MD
Arch Otolaryngol. 1979;105(4):175-179.
Abstract
• The effect of electrical stimulation of the cochlea on vestibular response was monitored in six rhesus monkeys. Eye movements and single-unit activity from the vestibular portion of the eighth nerve, vestibular nuclei, reticular formation, and abducens nucleus were observed while electrical stimulation was delivered through an implanted cochlear prosthesis. In one animal of this series, neural activity from the inferior colliculus and cochlear nuclear complex was also recorded. Electrical stimulation elicited eye-movement responses in only one animal. In the animals from which singleunit activity was recorded, no positive vestibular effects were noted. In one animal of this study, responses were elicited from auditory structures by relatively low intensities of electrical stimulation.
(Arch Otolaryngol 105:175-179, 1979)
Author Affiliations
From the Departments of Otolaryngology (Drs Kimm, Sutton, and Donaldson), Physiology, and Biophysics (Dr Kimm) and the Regional Primate Research Center, University of Washington, Seattle. Mr Winfield was a visiting graduate student in the Departments of Otolaryngology, Physiology, and Biophysics.
Footnotes
Accepted for publication Sept 7, 1978.
This report was presented in part at the midwinter meeting of the Association for Research in Otolaryngology, St Petersburg, Fla, 1978.
Reprint requests to the Department of Otolaryngology, University of Washington, Seattle, WA 98195 (Dr Kimm).
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