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The purpose of this study was to quantify social interaction rhythms in 3- and 5-month-old term and preterm infants and their mothers. Infant-mother dyads were videotaped in a 3-min face-to-face paradigm. For each second of the interaction, separate scores were assigned to infant and mother indicating levels of affective involvement, creating 2 180-sec time(More)
BACKGROUND Previous literature suggests an association between organochlorines and behavioral measures in childhood, including inattention. OBJECTIVE This study was designed to assess whether prenatal organochlorine exposure is associated with measures of attention in early infancy. METHODS We investigated an association between cord serum(More)
The procedures for the Neonatal Intensive Care Unit Network Neurobehavioral Scale includes a brief background, description of the examination, key concepts, a summary of the procedures, and order of administration of the items described in "packages," information about the testing kit, scoring issues, and summary scores. This is followed by presentation of(More)
The Brazelton Neonatal Behavioral Assessment Scale was administered to 54 term, healthy infants on days 1, 2, 3, 4, 5, 7, and 10. Infants were divided into 8 groups of maternal obstetrical medication. A separate drug factor score was computed from 4 variables: time from (1) first and (2) last drug administration to delivery, (3) number of different drugs,(More)
Ten underweight full-term newborns were compared with 10 full-weight newborns on the Brazelton Neonatal Behavioral Assessment Scale. The Brazelton examination differentiated the two groups clearly on the reflexes of walking, crawling and passive movements of arms and legs, and on rooting and sucking. More importantly, it differentiated the two groups on(More)
By three weeks of age, the human neonate demonstrates behaviours which are quite different with an object and with a human interactant. He also demonstrates an expectancy for interaction with his caregiver which has clearly defined limits, as demonstrated behaviourally. In microanalysis of videotape, we saw regularly a set of interactive behaviours which(More)