In a naturalistic behavioral stdy, it was found that prematures have significantly more endogenous smiling than full-term newborns. (Authors)

Presents a description of a neonatal monitoring system and the studies used in its validation. (SDH)

Thirty-one normal neonates were monitored for 24 hours on a newly developed movement monitor which provided measures of noncrying activity and counts of various movement amplitudes. (Author/SDH)

A study of the relationship between pain-relieving drugs given to mothers during labor and delivery and neonatal behavior as assessed by the Brazelton Scales. Tested 44 infants on eight different days during their first month of life. (SDH)

Data indicate that the interventions provided differed in their effectiveness in calming newborns to a highly significant degree. (Authors)

Results demonstrate that 12 - 15 - week-old male infants smile to nonsocial stimuli, and offers support for the recognition hypothesis of infant smiling. (Authors/MB)

Based on 25 white middle-class infants from 9 to 12 months of age, the earliest manifestation of obedience to appear was a simple disposition to comply with maternal commands and prohibitions, independent of efforts to train or discipline the baby. (Authors/RY)

Results suggest that the human infant's response to visual stimulation undergoes change during the neonatal period. (Authors)

The relation between maternal presence and infant's vocalization depended upon the infant's state: when the infant was in the active awake state, he vocalized less in the presence of the mother than when alone, thus indicating that the majority of early vocalizations are associated with a non-social situation. (Authors/RY)

Study investigated whether the observed individual differences in visual pursuit endure beyond the neonatal period. (Authors/MB)