情報理論による臨床的耳鳴測定の試み

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タイトル別名
  • AN APPROACH TO THE EXAMINATION OF TINNITUS BY INFORMATION THEORY
  • ジョウホウ リロン ニ ヨル リンショウテキ ミミナリ ソクテイ ノ ココロミ

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Applying Shannon's communication system, the auditory system with tinnitus was assumed as a noisy discrete channel because the tinnitus was considered as a distubance in the rate of information transmission.<br>The equation of the rate of information transmission (R) in the auditory system with tinnitus was determined according to the information theory. Practical calculation of R in the patients complaining of tinnitus was conducted from the data of their audiogram. The relation between the calculated R and loudness (db) of signal sound were charted in rectangular co-ordinates, where the ordinate and abscissa represented R and londness respectively. This was named the R-db chart. The examination of R in 20 patients complaining of tinnitus and in 9 normal persons revealed that tinnitus converts the figure of the R-db chart. Further investigation is required to determine the usefulness of the R-db chart to the differential diagnosis on the causes of tinnitus.

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