Tests the hypothesis that appropriately timed stimulation provided to preterm infants would aid self-regulating and lead to quiet sleep. It was expected that effects of self-regulation would be evident in infant development interaction and performance. Stimulation consisted of a gentle horizontal movement and a heartbeat sound presented on…

Behavioral studies of early visual development are interpreted within a framework provided by data from the neurosciences. Conclusions concerning the visual responses elicited during the first month of life and the more sophisticated reactions appearing during the second and third months of infancy are presented. (Author/SDH)

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)

Discusses the relevance of the study of the neurobiology of cognitive development, for an understanding of both the neural bases and the nature of cognition. Also considered are the age at which hemisphere specialization first appears and whether hemisphere specialization changes over time. (PCB)

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…

Studied the sleep state organization and EEG patterns at term date in 53 preterm infants as an index of the maturity and integrity of neurophysiological organization that may have implications for their later development. (HOD)

A total of 20 children with idiopathic precocious puberty; 27 adolescents with clinically delayed puberty; and an equivalent number of controls matched for sex, age, and IQ were given a battery of tests including measures of verbal and spatial abilities and a task using a dichotic listening procedure to assess hemispheric lateralization.…

Describes the relationship between neonatal crying and anthropometric indices of fetal growth. No differences were found between cry features of underweight and overweight infants; both groups required more stimulation than average weight infants to elicit crying. It is suggested that certain cry features may reflect the risk status of neonates…

Authors suggest that consideration be given to maximizing the opportunies for systems in either cerebral hemisphere to develop fully in early life, when the child is essentially split-brained," so that developmental imbalance does not exist when the two hemispheres later begin to communicate. (Authors/MB)

Suggests that the information integration processes used by adults to form judgments are also used by children. (ST)

Determines the frequency distribution of Brainstem Auditory Evoked Potential variables (BAEP) for premature babies at different stages of development--normal newborns, infants, young children, and adults. The author concludes that the assumption of normality underlying most "standard" statistical analyses can be met for many BAEP…

Presented are a literature review and new data on correlates of newborn auditory brainstem evoked responses (ABRs). Concludes that disorders of the central components of the ABR may be more of prenatal than of postnatal origin. The I-V interval had low but reliable correlations with four of 11 Brazelton scale variables. (RH)

Examined the contribution of biological and environmental variables to 11-year-olds' phonological development. Found that temporal lobe (planar) asymmetry, hand preference, family history of reading disability, and SES explained over half the variance in phonological and verbal performance, demonstrating a linear association between cerebral…

Presents an account of the development and use of the Neonatal Behavioral Assessment Scale (NBAS). Discusses ways in which NBAS has increased understanding of development in the newborn, of states of consciousness in the infant, of prediction in development, and of a clinician's opportunities to share information with parents. (BC)