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Clinical Use of CNV in Objective Audiometry: Result and Evaluation for Psychogenic deafness Shinro Ito 1 1Department of Otolaryngology, Tokyo Medical College pp.21-26
Published Date 1981/1/20
DOI https://doi.org/10.11477/mf.1492209199
  • Abstract
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 Contingent negative variation (CNV) was clinically used in objective audiometry in normal hearing subjects and subjects with functional deafness.

 CNV was recorded in most of the patients suspected of psychogenic deafness. This fact showed that psychogenic deafness differed from a deafness that has been termed as "disturbance of sound perception" or "sleeping condition of hearing activity.

 These findings may produce complicated problems about functional deafness. The differential diagnosis between so-called "psychogenic deafness" and "malingering" became rather difficult according to the results of our study.


Copyright © 1981, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 印刷版ISSN 0386-9679 医学書院

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