Findings of a series of studies on individual differences and maturational changes in expressivity at the neonatal stage and during early infancy are reported. Research results indicate that newborns are able to discriminate and imitate the basic emotional expressions: happy, sad, and surprised. Results show widened infant lips when the happy…

This paper questions social interaction studies that use frequency or duration of behaviors in mother-infant relations as reliable measures of infant interactive competence. An infant's high score on frequency and duration tests may falsely indicate that the child is more communicative than other subjects. Such results may suggest that mother and…

Stability of temperament over successive ages in the first 2 years was evaluated for 109 full-term and 81 preterm infants who were assessed at 6, 9, 12, 18, and 24 months of age. At each age subjects were engaged in a series of age-appropriate vignettes in the laboratory; experimenters used a structured sequence of activities. Composite ratings…

In his article "The 'Effects' of Infant Day Care Reconsidered," Jay Belsky (see PS 017 108) concludes that maternal employment puts infants at risk for developing emotional insecurity and social maladjustment. After a review of Belsky's and other research, a different conclusion is offered in this paper. It is agreed that infants whose…

The booklet describes the condttion known as low birth weight and suggests ways in which a mother can take precautions against its occurring in her own child. Problems and maternal factors associated with low birth weight babies are discussed, and research on the causes of prematurity and growth retardation are reviewed. (SBH)

Clarifies issues involved in use of heart rate as index of newborn attentional responsivity by reviewing related studies and concluding that heart rate variability can be used in studying attentional responsivity state, and intra-individual and individual variables. (ED)

Study supported in part by Grant MH-10993 from the National Institute of Mental Health, U.S. Public Health Service.

To investigate the relationship of differences in 2-year-old children's reactions to strangers to differences in their temperaments and their security of attachment with their mothers, a correlational study was conducted with 47 infants and their parents. In the first component of the study, both parents completed a child temperament rating…

The responses of friends and acquaintances of parents whose child has died as the result of Sudden Infant Death Syndrome can be helpful and supportive or they can be guilt-producing, painful, and destructive. Some destructive responses experienced by parents in those circumstances include questioning such as, "Did you...?" which implies that…

The influence of age, sex, representational detail of objects (prototypicality) and adult play suggestions on children's progression of pretend behaviors was studied. A checklist was developed and utilized for coding the responses of 20 children (10 males, 10 females), to objects judged to be high and low prototypical by 12 adults. Children ranged…

FINDINGS WERE REPORTED ON THE ROLE OF EXPERIENCE IN THE DEVELOPMENT OF THOSE SKILLS NECESSARY FOR VISUALLY DIRECTED REACHING. THE SKILLS INVOLVED WERE THE ORIENTING, ACCOMMODATING, AND PURSUIT RESPONSES OF THE EYES, ALL OF WHICH ARE ACHIEVED DURING THE FIRST HALF-YEAR OF LIFE. SEVERAL EXPERIMENTAL CHANGES WERE MADE TO THE ENVIRONMENT OF A GROUP OF…

This document presents the hearings before the Subcommittee on Child and Human Development on the enactment of the Sudden Infant Death Syndrome (SIDS) Act Extension of 1978. The purpose of the hearing was to determine the effectiveness of the SIDS program which was established by Public Law 93-270, to determine how it can be improved or expanded,…