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Brain and Nerve No to Shinkei Volume 17, Issue 8 （August 1965）

Brain and Nerve 脳と神経 17巻8号（1965年8月発行）

Japanese English

研究

電子加算機による脳波聴性反応の観察 A STUDY ON AVERAGE RESPONSE OF THE BRAIN TO SOUND STIMULATION BY AVERAGE RESPONSE COMPUTER 松崎力 ¹ , 鳥山稔 ¹ , 林宏典 ¹ Tsutomu MATSUZAKI ¹ , Minoru TORIYAMA ¹ , Hironori HAYASHI ¹ ¹東京大学医学部耳鼻咽喉科 ¹Dept. of Oto-rhino-laryngology, Faculty of Med., Univ. of Tokyo pp.809-819

発行日 1965年8月1日 Published Date 1965/8/1

DOI https://doi.org/10.11477/mf.1406201903

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Abstract 文献概要
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I．緒言

　人間の脳波上に音響刺激によりある一定した誘発反応が生ずることが1939年Davis et al．^1）の報告以来知られている。

　1948年，Deorbler^2）は聴覚刺激に対する脳波を含めた生体電気反応を他覚的聴力検査に応用することを示唆したが，この問題はTato （1949）^2），　Marcus et al，　（1949，1951）^4）5），Gidoll （1952）^6）7）8）らがその初期の業績を報告した後，多くの学者によつて発展せられた。

Average responses of the brain to repetitive tone bursts were investigated by a kind of analog comput-er.

Results were as follows:

1) The typical waveform consisted of positive and negative components. The peak latency of the initial positive one lay approximately at 60 msec and total duration of the response amounted to 500 msec.

2) The responsibility of the brain to sound was remarkably influenced with the subject's con-ciousness. Light sleep was most suitable for the response to appear.

3) The threshold of the response was estimated at less than 30 db and at more than 50 db the resposibility tended to decrease.

On the other hand each response to single tone was observed and its waveform was compared with the average response. The appearance of the each respcnse was examined and discussed from some neurophysiological points of view.