Examined the effect of maternal soothing to infant inoculation as well as everyday distress on infant cortisol and behavioral responses to stress in two samples of infants between 2 and 6 months of age. Found no evidence that maternal soothing reduced cortisol or behavioral-stress responses, despite evidence for cross-time stability and…

Examined validity of Strange Situation attachment classifications for infants with and without extensive child-care experience and the association of early child-care experience with attachment security. Found that infants were less likely to be secure when low maternal sensitivity was combined with poor quality child care, more than minimal…

Evaluated an intervention designed to influence mothers' sensitive responsiveness toward their infant by presenting information about the newborn's competence to interact and promoting affectionate handling and interaction. Found that the enhancement group showed greater frequency of co-occurrences involving vocal exchanges, looking to the…

Used time-lapse video to record sleep/wake states of preterm infants for three 24-hour periods at 33 and 35 weeks conceptional age. Found that very-low-birthweight preterm infants showed marked stability and developmental change in the organization of sleep/wake states from a very early age, and their states were related to demographic variables…

Examined how child care experiences related to cognitive and language development from birth through age 3. Found that care quality was modestly related to cognitive and language outcomes, after adjusting for several factors. Cumulative experience in center-based care related to better outcomes than did experience in other care. Children in…