You are seeing this message because your Web browser does not support basic Web standards. Find out more about why this message is appearing and what you can do to make your experience on this site better.


ABOUT ARCHIVES
Advanced Search

Welcome   | My Account | E-mail Alerts | Access Rights | Sign In


  Vol. 36 No. 2, February 1979 TABLE OF CONTENTS
  Archives
  •  Online Features
  ARTICLE
 This Article
 • Reply to article
 •Send to a friend
 • Save in My Folder
 •Save to citation manager
 •Permissions
 Citing Articles
 •Contact me when this article is cited
 Related Content
 •Similar articles in this journal

Brain stem auditory evoked responses: studies of waveform variations in 50 normal human subjects

K. H. Chiappa, K. J. Gladstone and R. R. Young

Brain stem auditory evoked responses (BAERs) were recorded in 50 normal adult subjects at various click rates. Attention was paid to absolute latencies, interwave latencies, interear interwave latencies, absolute amplitudes, and various amplitude ratios. The variability of waves VI and VII suggests that the clinical utility of these waves is restricted-their absence is not necessarily due to a CNS lesion. The wave IV-V complex appears with six different patterns. These variations must therefore be considered normal; none should be misconstrued as indicative of disease of the CNS. Repeated studies over a period of two to nine months showed no statistically significant changes in amplitude or latency measurements with the passage of time. Knowledge of these normal values and their variations, as a precondition for establishing criteria for abnormality, is essential to the interpretation of BAERs in clinical situations.





HOME | CURRENT ISSUE | PAST ISSUES | TOPIC COLLECTIONS | CME | SUBMIT | SUBSCRIBE | HELP
CONDITIONS OF USE | PRIVACY POLICY | CONTACT US | SITE MAP
 
© 1979 American Medical Association. All Rights Reserved.