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Artifacts produced during electrical stimulation of the vestibular nerve in catsEvidence is presented to indicate that evoked potentials in the recurrent laryngeal, the cervical sympathetic, and the phrenic nerve, commonly reported as being elicited by vestibular nerve stimulation, may be due to stimulation of structures other than the vestibular nerve. Experiments carried out in decerebrated cats indicated that stimulation of the petrous bone and not that of the vestibular nerve is responsible for the genesis of evoked potentials in the recurrent laryngeal and the cervical sympathetic nerves. The phrenic response to electrical stimulation applied through bipolar straight electrodes appears to be the result of stimulation of the facial nerve in the facial canal by current spread along the petrous bone, since stimulation of the suspended facial nerve evoked potentials only in the phrenic nerve and not in the recurrent laryngeal nerve. These findings indicate that autonomic components of motion sickness represent the secondary reactions and not the primary responses to vestibular stimulation.
Document ID
19740010654
Document Type
Conference Paper
Authors
Tang, P. C. (Naval Aerospace Medical Research Lab. Pensacola, FL, United States)
Date Acquired
August 7, 2013
Publication Date
January 1, 1973
Publication Information
Publication: NASA, Washington Fifth Symp. on the Role of the Vestibular Organs in Space Exploration
Subject Category
BIOSCIENCES
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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