Presented as part of a Symposium at the Meeting of the Middle Section, American Laryngological, Rhinologlcal and Otological Society, Inc., Omaha, Nebr., January 22, 1972.
Symposium on basic ear research. III. Auditory evoked averaged responses in monkeys†
Version of Record online: 5 JAN 2009
Copyright © 1972 The Triological Society
Volume 82, Issue 7, pages 1126–1144, July 1972
How to Cite
Nagafuchi, M. and Cody, D. T. R. (1972), Symposium on basic ear research. III. Auditory evoked averaged responses in monkeys. The Laryngoscope, 82: 1126–1144. doi: 10.1288/00005537-197207000-00003
- Issue online: 5 JAN 2009
- Version of Record online: 5 JAN 2009
- National Institutes of Health. Grant Number: NB-6306
Averaged responses evoked by tone-bursts were investigated in the alert, anesthetized, and sedated Rhesus monkey. Identified were a short latency (peak 13.5 msec) triphasic extracranial response and a longer latency (P1 38 msec, N1 93 msec, P2 152 msec, N2 199 msec) polyphasic intracranial response. The early and late components of the intracranial response seemed to originate in different auditory centers. It was concluded that, with intracranially implanted electrodes, determining averaged response thresholds for tone-bursts in the monkey sedated with phencyclidine hydrochloride is a reasonably accurate method of estimating behavioral thresholds of hearing.