de Roquefeuil G, Djakovic M, Montagner H
Unité 70, Institut National de la Santé et de la Recherche Médicale, Montpellier, France.
Chronobiol Int. 1993 Feb;10(1):43-53. doi: 10.3109/07420529309064481.
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 disorders and dysfunction. Individual factors are under study.
本研究是关于幼儿睡眠-觉醒节律的个体发生和调节的更广泛研究的一部分。该研究对12名4或5个月大进入日托中心的儿童进行。这些儿童均未表现出任何异常或功能障碍。本研究采用的方法包括收集4至15个月大儿童在家庭和日托中心24小时内的觉醒与睡眠交替以及行为数据。主要发现如下：(a) 觉醒和睡眠的昼夜节律早在4个月大时就已明确建立，并在6至7个月时巩固；(b) 某些年龄段的睡眠时长在每日分布和持续时间上有显著变化：6至7个月；10至12个月；13至15个月；(c) 这些变化表明存在几种超昼夜节律，在儿童发育过程中，它们在不同年龄段相继占主导地位。对幼儿睡眠-觉醒节律的纵向研究有助于更好地评估发育因素对其结构形成的影响，并为其紊乱和功能障碍提出新的假设。个体因素正在研究中。
