Polysomnographic features during nocturnal sleep were investigated in 27 infants with developmental disabilities. With the use of a multiple regression analysis, 78% of the variance of a Development Quotient (DQ) measured by a questionnaire on behavioral development for infants was explained by sleep measures. Of 14 sleep measures employed in the study, (1) cumulative awakening time during a nocturnal sleep time, (2) duration of REM stage, and (3) percentage of REM to total sleep time were important in association with the DQ. The findings are consistent with the sleep-cognition hypothesis proposed by Espie, et al.
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References
1.
DiomediM.CuratoloP.ScaliseA.PlacidiF.CarettoF.GigliG. L. (1999) Sleep abnormalities in mentally retarded autistic subjects: Down's syndrome with mental retardation and normal subjects. Brain & Development, 21, 548–553.
2.
EspieC. A.PaulA.McFieJ.AmosP.HamiltonD.McCollJ. H.TarassenkoL.PardeyJ. (1998) Sleep studies of adults with severe or profound mental retardation and epilepsy. American Journal on Mental Retardation, 103, 47–59.
3.
EspieC. A.TweedieF. M. (1991) Sleep patterns and sleep problems amongst people with mental handicap. Journal of Mental Deficiency Research, 35, 25–36.
4.
IglowsteinI.JenniO. G.MolinariL.LargoR. H. (2003) Sleep duration from infancy to adolescence: reference values and generational trends. Pediatrics, 111, 302–307.
5.
KnoblochH.PasamanickB. (1955) A developmental questionnaire for infants forty weeks of age: an evaluation. Monographs for Research in Child Development, 20(Ser. No. 61, No. 2).
6.
RechtschaffenA.KalesA. (Eds.) (1968) A manual of standardized terminology, techniques and scoring system for sleep stages of human subjects. Washington, DC: Public Health Service, U.S. Government Printing Office.
7.
TsumoriM.InageN. (1979) [Questionnaire method of measurement of psychological development for infants and young children]. Tokyo: Dainippon Tosho. [in Japanese]
8.
WilliamsR. L.KaracanI.HurschC. J. (1974) Electroencephalograph (EEG) of human sleep: clinical application. New York: Wiley.
