Intellectual performance is highly heritable and robustly predicts lifelong health and success but the earliest manifestations of genetic effects on this asset are not well understood. This study examined whether early executive function (EF) or verbal performance mediate genetic influences on subsequent intellectual performance, in 561 U.S.-based…

The present study examines variation in the effect of birth weight on children's early cognitive and socioemotional outcomes by family socioeconomic status (SES). It is hypothesized that not only will lower birth weight children display worse cognitive and socioemotional outcomes prior to school entry, as prior research has found, but that effects…

This study examined associations between caregiver talk and language skills in full term (FT) and preterm (PT) children (n = 97). All-day recordings of caregiver-child interactions revealed striking similarities in amount of caregiver talk heard by FT and PT children. Children who heard more caregiver talk at 16 months demonstrated better…

This study examined the developmental significance of mothers' adult attachment representations assessed prenatally with the Adult Attachment Interview in relation to observed maternal sensitivity at 6 months postpartum in an ethnically diverse sample (N = 131 African American; N = 128 European American). Multiple-group confirmatory factor…

Three generations of participants were assessed over approximately 27 years, and intergenerational prediction models of growth in the third generation's (G3) externalizing and internalizing problems across ages 3-9 years were examined. The sample included 103 fathers and mothers (G2), at least 1 parent (G1) for all of the G2 fathers (99 mothers,…

Explores whether an empirical classification of healthy fetuses as fetal heart rate accelerators or decelerators would predict birth weight and neonatal behavior scored with the Brazelton Neonatal Behavior Assessment Scale. (Author/RH)

The IQ performance of children who experienced the birth of a younger sibling was found to drop 10 points during the next two years for singleton children and 5.8 points for last-born children from families of comparable size. The study controlled for sex, family size, age at assessment, and IQ before the birth of the sibling. (Author/RH)

Found that infants who were delivered with their head turned right exhibited a neonatal right supine head orientation and a right-hand preference in visually guided reaching tasks at 19 weeks of age. Contrary to prediction, infants delivered with their head turned left did not exhibit a left-sided preference in either neonatal head position or…

Studied head position preference in 20 newborns differing by Cesarean or vaginal delivery and sex. Found that neither factor accounted for differences. The head turned right more often and was maintained longer in this position during quiet wakefulness, regardless of scoring method. When using global scoring, duration of midline position was…

Evaluates the effects of continuous lumbar epidural anesthesia on the newborn and on the developing mother- infant relationship. (Author/MP)

Indicates that husband-wife differences in evaluations of marital adjustment increased over time when individuals recalled being reared in a cold/rejecting as opposed to warm/supportive manner, particularly when individuals also recalled their own parents as not having an especially harmonious marital relationship. (Author/RH)

Preschool children's behavorial and physiological responses to separation were monitored before, during, and after their mothers' hospitalization for the birth of a sibling. Play sessions were videotaped simultaneously with activity level and heart rate monitoring, nighttime sleep was timelapse videotaped, and parents completed questionnaires…

Firstborn children's reaction to sibling birth assessed in 41 families via family interviews at 1 month prepartum and 1, 4, 8, and 12 months postpartum. Familial interaction patterns were observed in semistructured play sessions. Time since the birth of the sibling and sibling gender had significant effects on firstborn children's adjustment.…

Reviews research concerning fathers' birth attendance, early contact, and extended contact with newborn infants. Discusses relationships between fathers' early history with infants and subsequent patterns of involvement. Considers methodological challenges of studying these relationships and finds that no conclusive statements can be made about…

Three studies used interspecies adoption stories to examine children's understanding of the role of birth in determining animal properties and species identity. Found that most 4- to 7-year olds could reliably judge that babies would be of the same species as birth parents, but were unable to attribute properties of adoptive parents. (Author/KB)