To study the effects of perinatal HIV-1 infection and early institutional rearing on the physical and cognitive development of children, 64 Ukrainian uninfected and HIV-infected institutionalized and family-reared children were examined (mean age = 50.9 months). Both HIV infection and institutional care were related to delays in physical and…

Four experiments tested three to six year olds' and adults' understanding of animals' growth changes. All subjects understood that animals get larger with age. Older children and adults, but not younger children, allowed for dramatic changes in the size and shape of animals over the animals' lifespans. (BC)

Children of 200 low-income families were studied to determine possible deleterious outcomes due to maternal employment in the child's first 3 years of life. When 8-year follow-up data were controlled for maternal variables, 30 differences in outcomes were found, 27 of which favored children of workers. (Author/JMB)

Recent studies on the biological development of the prefrontal cortex in rhesus monkeys are reviewed. These studies have elucidated the basic neural circuitry underlying the delayed-response function in adult nonhuman primates and suggest that a critical mass of cortical synapses is important for the emergence of this cognitive function. (BN)

Four studies explored children's beliefs about the stability of positive traits among three groups. Findings indicated that younger children were more likely than older children or adults to believe that negative physical and psychological traits would change positively, that they could control the expression of a trait, and that extreme positive…

The developmental pattern of concurrent synaptogenesis in rhesus monkeys is consistent with a straightforward model of relations between brain and cognitive development. Concurrent synaptogenesis is hypothesized to lay the primary cortical foundation for a series of developmental levels in middle infancy that have been empirically documented in…

Longitudinal data from a study of child development in Guatemala City were used to describe the influence of socioeconomic status and sex on physical and cognitive growth status. The correlation between growth status variables was also analyzed. (Author/RH)

Studied effects on nutritional supplementation, with or without psychosocial stimulation, on the development and growth of 129 stunted children compared with 32 nonstunted children. Found that after six months, initially low activity levels of stunted children matched those of nonstunted children, regardless of treatment. Supplementation improved…

Considers the nature and developmental functions of physical activity play. Distinguishes three kinds of physical activity play with consecutive age peaks: rhythmic stereotypies, exercise play, and rough-and-tumble play. Considers gender differences and function in terms of immediate and deferred consequences in physical, cognitive, and social…

At 3 years of age, children who had received food supplementation were an average of 2.6 cm and 642 grams larger than controls. Home visiting and supplementation combined reduced the number of children with severe growth retardation. Participants were 280 infants and their families from poor neighborhoods in Bogota, Colombia. (RH)

Compared family characteristics and developmental outcomes of African-American children from three rural contexts in South Africa: the homeland, the resettlement, and white-owned farms. Child outcomes were highly intercorrelated in all three contexts, but correlations among family variables, and between family and child variables, showed different…