Artículos de revistas
Long-term oscillations in the sleep/wake cycle of infants
Fecha
2009Registro en:
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS, v.388, n.22, p.4727-4735, 2009
0378-4371
10.1016/j.physa.2009.08.002
Autor
DIAMBRA, L.
Malta, Coraci Pereira
Stanham, Alberto Capurro
Institución
Resumen
The development of circadian sleep-wakefulness rhythm was investigated by a longitudinal study of six normal infants. We propose an entropy based measure for the sleep/wake cycle fragmentation. Our results confirm that the sleep/wake cycle fragmentation and the sleep/wake ratio decrease, while the circadian power increases during the maturation process of infants. In addition to these expected linear trends in the variables devised to quantify sleep consolidation, circadian power and sleep/wake ratio, we found that they present infradian rhythms in the monthly range. (C) 2009 Elsevier B.V. All rights reserved.