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June 1975

Human Wakefulness and Biological Rhythms After Birth

Author Affiliations

From the Department of Psychiatry, University of Colorado School of Medicine, Denver.

Arch Gen Psychiatry. 1975;32(6):780-783. doi:10.1001/archpsyc.1975.01760240108008

Both a sleep-wakefulness cycle and a basic rest-activity cycle were observed in 20 normal infants left undisturbed for ten hours following birth. Behavioral wakefulness occurred immediately following delivery and in between sleep periods despite the lack of feeding and other intervention. Medication given to mothers during labor resulted in decreased amounts of infant wakefulness and increased amounts of quiet (non rapid eye movement) sleep.