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HEARING TEST WITH AVERAGE RESPONSE COMPUTER ANALOG TYPE Kiichiro Taguchi 1 pp.497-509
Published Date 1964/6/20
DOI https://doi.org/10.11477/mf.1492203271
  • Abstract
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 Hearing tests were conducted with averageresponse computor with v-potential serving as indicator; following results were obtained.

 1) Basic types of v-potential consisted of 3 phases of waves; negative (N1) positive (P2) and negative (N2).

 2) The amplitude and occurrence of this potential are found to be smaller in children aged below 10 as compared to that of the adult. Its occurrence in adults appeared to have 20 db threshold and 100% positive, whereas in children below the age 10 equal results were obtained at 40 db threshold.

 3) The latent period of the potential was 60 msec for both adults and children.

 4) When the stimulation as the threshold level was given, the response was more easily detectable by the summation method than by the superimposition method, whereas with the supraliminar stimulations, no difference in the detectability of the response was found between the two methods.

 5) The time element in the formation of potential could be detected in some adults, whereas there were none among children.


Copyright © 1964, 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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