title: [Fluctuations of biological rhythms, behavior and intellectual activity in children in different environments].
abstract: We report in this paper research data which deal with the fluctuations of biological, biopsychological and intellectual variables throughout the day and week in children and adolescents attending various educational establishments. The first chapter is devoted to the evolution of sleep-arousal alternations from the second year of life and to the relations between this evolution and behavioral and physiological variations during the day. It is divided into four parts: temporal evolution of the sleep-wake rhythm of children from 2 to 5 years of age, attending kindergarten; modifications observed in the behavior and biological rhythms of children from the last year of kindergarten to the first year of primary school; the high variability of biological rhythms from one child to another; modifications observed in intellectual performances of children attending primary and secondary school. The second chapter is devoted to the evolution of the duration of night sleep during childhood and the self-regulation phenomena that it reveals. The overall data lead to suggestions for organizing school schedules throughout the day and week.
authors.affiliation: Unité 70 Institut national de la santé et de la recherche médicale, Montpellier, France.
authors.forename: H
authors.initials: H
authors.lastname: Montagner
authors.forename: A
authors.initials: A
authors.lastname: Restoin
authors.forename: G
authors.initials: G
authors.lastname: de Roquefeuil
authors.forename: M
authors.initials: M
authors.lastname: Djakovic
mesh_terms: D000293:Adolescent; D001683:Biological Clocks; D002648:Child; D002652:Child Behavior; D002675:Child, Preschool; D002940:Circadian Rhythm; D004493:Education; D006339:Heart Rate; D006801:Humans; D008606:Mental Processes; D012890:Sleep; D012931:Social Environment; D014851:Wakefulness
vernacular_title: Les fluctuations des rythmes biologiques, des comportements et de l'activité intellectuelle de l'enfant dans ses différents environnements.