Through the study of motor development, the physically educated person will understand that individuals develop at their own rate and require both time and practice to acquire new motor skills. The physically educated person needs to know about motor development in order to monitor his or her own change and become an independent learner.…

The relationship of bilirubin (a red bile pigment that is sometimes found in the urine and occurs in the blood and tissues in jaundice) in infancy to later intellectual development was investigated in 241 infants with moderately elevated and high bilirubin levels. Ss were administered motor, psycholinguistic, and intelligence tests at age 8…

This study formulated a multivariate model of early infant competence from variables representing a transactional perspective of developing competence in early infancy. The measures used in the competence model were: birth weight; habituation index; personality ratings of the infants' social orientation and task orientation; ratings of maternal…

Research supported by grant APA-178 from the National Research Council of Canada.

Mean scores of the Bayley Scales of Infant Development for 61 very low-birthweights, corrected for prematurity, were within the normal limits at both testing occasions. However, there was a significant decrease in mental development scores from one to two years of age. (Author/CL)

Studied were the behavioral characteristics of 60 methadone addicted infants and 53 nonaddicted infants during the first year of life (neonatal period, and at 3, 6, and 12 months of age). (PT)

The conclusion from these results is that while prenatal anomalies or an impoverished home environment may retard development, in the majority of cases the environmental conditions fall within the limits of sufficiency that permit the genetic blueprint to determine the course of infant development. (Authors)

Eighty at-risk infants were administered the Mental and Motor Scales of the Bayley Scales of Infant Development at 6 and 12 months of age. Test-retest reliability scores of .71 on the Mental Scale and .69 on the Motor Scale were obtained. (Author/JDD)

Evaluated in three experiments a dynamic systems theory account of perseverative errors on "A-not-B" task. Found that 9-month-olds perseverated when reaching for identical targets, but made nonperseverative responses when reaching in the presence of a highly distinctive B target. Reach direction was jointly determined by target's…

Presented are guidelines for a developmental roles approach to infant education. Developmental objectives are listed for language, cognition, socialization, independence, and movement at five levels: establishing the base, exploring the environment through actions, exploring the environment symbolically, exploring relationships, and preparing for…

Although most males with a 49,XXXXY karyotype will have significant mental retardation, the case of an affected boy having mild-cognitive and motor delays and age-appropriate adaptive skills at 59 months is presented. Guarded optimism may be justified in affected males demonstrating close to or age-appropriate developmental skills through early…