Behavioral state distribution throughout 24-h video recordings in preterm infants at term with good prognosis.
Behavioral state distribution in 19 preterm infants at term with good developmental prognosis was studied by 24-h video recordings. The preterm infants of shortest gestation had longer time awake and this was concentrated in the daytime. On classifying behavioral states by Prechtl's criteria, the preterm infants had a smaller amount of state 1 than healthy term infants; but a similar amount of state 5 in awake time. Preterm infants were thought to have accelerated development in terms of diurnal sleep-awake rhythm, and decelerated development in terms of the content of sleep manifested by the amount of state 1.
Department of Pediatrics, Seirei-Mikatabara Hospital, Shizuoka, Japan.
K
K
Yokochi
Y
Y
Shiroiwa
K
K
Inukai
H
H
Kito
J
J
Ogawa
D001724:Birth Weight; D002940:Circadian Rhythm; D005260:Female; D005865:Gestational Age; D006801:Humans; D007231:Infant, Newborn; D007234:Infant, Premature / Q000502:physiology*; D008297:Male; D012894:Sleep Stages; D014741:Video Recording; D014851:Wakefulness