精神薄弱児の発達に関する生理心理学的研究

脳波の帯域分析による検討

抄録

The purpose of this study is concerned with the developmental characteristics of mentally retarded children's EEG in the resting state. Subjects were 108 normal children and 112 mentally retarded children without exogenous history, motor disorders and EEG abnormalities. Their ages ranged from 3 to 15 in the normal and from 7 to 18 in the retarded. The EEGs were recorded monopolarly from the six regions along the middle line, and the bilateral temporal regions. The EEGs were analysed by the band pass filter EEG analyzer. These results show lower frequency in the retarded children's EEG than that of the normal children and may suggest the retardation of the development of their brain. There is little difference, however, in the developmental process of EEG between them.