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Correlation between delta and spindle components in compressed spectral array during nocturnal sleep in mentally retarded children.

M Shibagaki·S Kiyono·T Takeuchi
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Abstract

The correlation between the delta and spindle components in compressed spectral array in 96 mentally retarded children (from 3 months to 12 years of age) was studied throughout nocturnal sleep. In 57 (59.4%, group A) of 96 subjects, periodic changes of delta and spindle rhythm powers were noted in sleep EEG. In 29 subjects (30.2% group B), delta but not spindle rhythm powers were found, and in the remaining 10 subjects (10.4%, group C) neither delta nor spindle rhythm powers were found throughout nocturnal sleep. A significant increase in abnormal clinical EEG was found in groups B and C as compared with group A. A significant decrease in the developmental quotient (DQ) was found in groups B and C as compared with group A. A significant decrease in DQ was also found in group C as compared with group B.

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ChildChild DevelopmentChild, PreschoolDelta RhythmElectroencephalographyFemaleHumansInfantIntellectual DisabilityMaleSleepJournal ArticleResearch Support, Non-U.S. Gov't

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M Shibagaki, S Kiyono, T Takeuchi. 1987. Correlation between delta and spindle components in compressed spectral array during nocturnal sleep in mentally retarded children.. https://doi.org/10.1159/000120294

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