1998 年 30 巻 p. 103-108
EEG was measured on purpose to clarify the effect of acoustic surroundings upon learner's consciousness. And the band spectrum of EEG was examined by the method of the discriminant analysis using Mahalanobis'Generalized Distance. Investigating these numerical results, it was obtained that learner's α wave decreased in white noise surroundings. But, it increased in classic music surroundings.