Four experiments investigated 4-, 6-, and 9-month-old infants' ability to perceive whether the width relationship between a block and the opening of a box specified passing through or support. Found that six- and nine-month olds looked significantly longer than four-month olds when a block wider than a box opening passed through this opening. (MDM)

Observed infants' stress responses to a well-baby examination and inoculation at two, four, and six months. Found an increase in salivary cortisol level over baseline in response to the procedures and that the cortisol response decreased with age, indicating a developmental shift in adrenocortical functioning between two and six months of age. (BC)

Examined maternal talk about events regarding hidden, missing, or absent persons or objects, and the relationship of maternal language to children's acquisition of words for disappearance, among 12 mother-infant pairs. Results found that infants who had acquired "gone" and similar terms experienced more disappearance events than children…

The capacity of six-month-old infants to maintain information in working memory for several seconds was studied using two versions of an oculomotor delayed response task. The results indicated that infants maintained information about stimulus locations in working memory for three to five seconds. (MDM)

Examined the contribution of specific contextual attributes to six-month-old infants' recognition of a well-learned cue. Infants did not encode contextual information in a holistic manner. The perceptual identification of contextual cues that were represented in the memory of an event was requisite for the retrieval of the memory. (GLR)

Analyzed data on 437 handicapped infants and toddlers referred for services between 1988 and 1989. Findings provide a realistic view of the type and intensity of services often needed by this age group, frequency of specific handicapping conditions, and types of recommendations made. Findings provide information useful to future planning related…

The ability of six-month-old infants to remember a functional category acquired in a specific context was assessed in three experiments. Findings revealed that at six months, information about the place where categories are constructed is prerequisite for retrieval of a category concept from long-term memory. (GLR)

Full-term infants who had slept in the prone position since birth were followed to detect early postural abnormalities and differentiate potential peripheral abnormality from abnormalities of a central origin. Results showed that disappearance of initial signs of abnormality appeared to be muscular, and symptoms disappeared faster when a motor…

Misunderstandings of African-American infant attachments are likely if evaluative standards derived from infant caregiving in traditional white middle-class culture and an external point of view are employed. An exploratory study involving 37 African-American infants found that they had between 2 and 5 primary adult caregivers, as well as a larger…

Agrees with Jackson's assertion in the previous article that the development of attachment relationships in an African-American multiple-caregiver context should be analyzed and understood on its own terms to avoid an ethnocentric "Euro-American" perspective. Emphasizes the crucial contribution of overnight care in the development of…

The results of a study of 18 Down's syndrome infants demonstrated that subjects provided with physical and verbal reinforcement scored higher on measures of gross motor, language, and social and self-help skills than infants provided with verbal reinforcement alone. Infants receiving only verbal reinforcement scored higher on measures of fine…

Evaluated 108 mothers and their newborn babies for bacterial colonization and neonatal septicemia (NNS) after membranes had ruptured for 24 hours or more. Nearly 40% of the babies were already colonized at birth. The three most common bacteria isolated from the babies were Escherichia coli, Group B Streptococcus, and Streptococcus faecalis. (MDM)

Examined the relationship between maternal praise and task performance of children ages 10 months to 4 years and 10 months. Found that children improved their performance as they grew older and that mothers praised the highest level of performance more often than the lower levels. Praise to older children referred to only the performance and not…

A mechanism of perceptual analysis by which infants derive meaning from perceptual activity is described. Infants use this mechanism to redescribe perceptual information into image and schematic format. Image schemas enable preverbal thought and provide a foundation for language acquisition. (SLD)

Assessed effects of maternal employment on socioemotional development of young children. After controlling for differences at time of child's birth, found that children whose mothers worked full-time beginning in child's first or second year scored more poorly on composite measure of adjustment than did children of mothers who were not employed…