半睡期における単語記憶学習 : 中・高校生の睡眠学習の効果

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Harano and Egawa have a series of both experimental and clinical researches on fixation of half-sleep and hypnotic suggestion in relation to arousal level. A new concept named "fixation" by Harano means a kind of cerebral cortical processes having close relations with retention quantity for memory activities. If a subject would be given suggestions or materials to be recollected during drowsy or hypnotic state which means a lower level of consciousness or arousal, he might afterward perform corresponding to suggestions, and recollect materials given before without consciousness. The half-sleep suggestion technique has demonstrated a good effectiveness for clinical treatments or modifications for car-sick, carphobia, enuresis, tic, and so on. The purpose of the present study is to demonstrate an effectiveness of half-sleep suggestion theory mentioned above in memory learning during drowsy state. Subjects; Fourteen male and twelve female junior high school pupils, and fourteen male and eight female senior high school pupils were used as subjects of the present study. The half of junior and senior pupils were assigned to control group at random balancing in sex, the other pupils were assigned to experimenral group. Material of memory learning; All subjects were different in school, the rate of their learning progress was different each other. All subjects were requested to list up twenty English words which they had never learned, and coressponding Japanese words, and to record them on tape. Instrument; Subjects used their own tape recorder and the pillow-like sleep learning equipment (A 2001 type, producted by Mitsui Kikaku Inc.) in which a speaker was set, linking to a tape recorder. Procedure; Experimental group (Ex. G.) was asked to listen to 20 tape recorded words after going to bed, every night for 6 days, and every morning to record on the exercise note how many Japanese words coressponding to English words they did recall. On the final day Ex. G. was requested to answer to the question on sleep learning exercise. The control group (Con.G.) took the same exercise of memory learning as the Ex. G. except listening to the tape recorder, and answering a questionnaire just after final session. Results and discussions; There was no difference between male and female subjects in junior high and senior high school pupils, and in Con. G. and Ex. G. It is concluded that sleep learning has no effect on discrimination of males from females. As ANOVA testified that there was notable difference in the number of memorized words between Ex. G. and Con. G. in both junior and senior high school pupils. This finding suggests that listening to words recorded on the tape-recorder during drowsy or half-sleep state may promote memory learning of words. Especially the Con.G. of junior pupils made a little progress in memory on the final day as compared with the initial day, while the Con. G. of senior pupils made a little decrease of memory. The present study demonstrated interesting evidences that progress of sleep-learning has close relations with the number of exercise days. There was significant difference in interaction of main effects-group×the days of exercise, and it is found from questionnaires that sleep learning has no unfavorable effects on psychological and bodily conditions. However, the present research gives no suggestions that sleep-learning has more effective influence on memory learning than any other method with equal time period to sleep-learning. And this study demonstrated only the results of sleep-learning on limited learning materials. In order to clarily the effect of sleep-learning, more elaborated experiments will be required.
日本行動療法学会の論文
1980-10-20

半睡期における単語記憶学習 : 中・高校生の睡眠学習の効果

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