Developing circadian rhythmicity in infants.

@article{Rivkees2003DevelopingCR,
  title={Developing circadian rhythmicity in infants.},
  author={Scott A. Rivkees},
  journal={Pediatric endocrinology reviews : PER},
  year={2003},
  volume={1 1},
  pages={
          38-45
        }
}
  • S. Rivkees
  • Published 1 August 2003
  • Biology, Psychology
  • Pediatric endocrinology reviews : PER
Circadian rhythms are endogenously generated rhythms with a period length of about 24-hrs. Evidence gathered over the past decade indicates that the circadian timing system develops prenatally and the suprachiasmatic nuclei, the site of a circadian clock, are present by mid-gestation in human and non-human primates. Recent evidence also shows that the circadian system of primate infants is responsive to light at very premature stages and that low intensity lighting can regulate the developing… 

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References

SHOWING 1-10 OF 78 REFERENCES
Developing circadian rhythmicity.
TLDR
Evidence gathered over the past decade indicates that the circadian timing system develops prenatally, and the suprachiasmatic nuclei, the site of a circadian clock, is present by midgestation in human and nonhuman primates.
Developing circadian rhythmicity. Basic and clinical aspects.
  • S. Rivkees
  • Psychology, Biology
    Pediatric clinics of North America
  • 1997
Perinatal development of human circadian rhythms.
The development of circadian rhythms in the fetus and neonate.
TLDR
Scientists and physicians should seek new experimental and clinical approaches to answer the challenging questions of perinatal chronomedicine.
Influence of light in the NICU on the development of circadian rhythms in preterm infants.
TLDR
There are sufficient data to state that there is no reason for continuing a chaotic, noncircadian environmental approach for the care of the prematurely born infant, and the importance of fetal circadian rhythms and the relative lack of these rhythms in the preterm infant is supported.
Extraocular circadian phototransduction in humans.
TLDR
These findings challenge the belief that mammals are incapable of extraretinal circadian phototransduction and have implications for the development of more effective treatments for sleep and circadian rhythm disorders.
Biological rhythmicity in normal infants during the first 3 months of life.
TLDR
The results of this study underscore the subtle changes in the nature and interaction of several infant variables during this critical developmental period, which may reflect maturation of the circadian system and its coupling with homeostatic effector systems that are developing in parallel.
Circadian rhythms during pregnancy.
TLDR
Circadian rhythms are predictive adaptations to the daily periods of light and dark induced by rotation of the earth around its axis loosely defined as changes in a physiological function with a period of approximately 24 h.
...
1
2
3
4
5
...