PMID: 8443843Feb 1, 1993Paper

New data on the ontogeny of the child's sleep-wake rhythm

Chronobiology International
G de RoquefeuilH Montagner

Abstract

The present study is part of a broader body of research concerning the ontogeny and regulations of the young child's sleep-wake rhythm. It was carried out with 12 children admitted to a day-care center from 4 or 5 months of age. None of the children showed any anomalies or functional disorders. The method used in this study consisted in organizing a data collection on the alternations of wakefulness and sleep as well as on the children's behavior throughout the 24-h period, both in their family and at the day-care center from 4 to 15 months of age. The main findings are (a) the circadian rhythm of wakefulness and sleep is clearly set up as early as at 4 months of age and consolidates between 6 and 7 months; (b) some ages are characterized by significant changes in the daily distribution and duration of sleep spans: 6 to 7 months; 10 to 12 months; 13 to 15 months; (c) these changes suggest the existence of several ultradian rhythmicities which become successively prevailing from one age to the next throughout child development. The longitudinal study of the young child's sleep-wakefulness rhythm allows better evaluation of the influence of developmental factors in its structuralization and formulation of new hypotheses on its di...Continue Reading

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Citations

Jul 20, 2002·Journal of Psychosomatic Research·B ThorleifsdottirH Kristbjarnarson
Jan 23, 1999·Neurophysiologie clinique = Clinical neurophysiology·J Louis
Apr 11, 2009·Chronobiology International·Catherine Leonhard, Christoph Randler
Oct 7, 2005·Child: Care, Health and Development·A Scher, D Cohen
Jan 28, 2004·Birth Defects Research. Part B, Developmental and Reproductive Toxicology·Sandra L WoodGregg D Cappon
Mar 12, 2003·Sleep Medicine Reviews·Al W de Weerd, Renilde A S van den Bossche
Aug 8, 2018·Sleep·Marie CamerotaCathi B Propper
Apr 29, 1999·Chronobiology International·B Löhr, R Siegmund

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