Compares infants' performance based on chronological age as opposed to conceptual age. The Bayley Mental Scales were used to test 20 premature experimental infants and 20 full-term control infants. Results demonstrated that an infant's performance must be judged on the basis of conceptual rather than chronological age. (MS)

Summary scores for behaviors rated on Bayley's Infant Behavior Record were obtained by summing sequential ratings for same-sex twins participating in a longitudinal study. Composite scores were calculated for two behavioral clusters - one composed of behaviors related to primary cognitions and the other of behaviors related to extraversion.…

Noting the difficulty that many parents have finding activities to fit the busy life, budget, and energy levels of the average parent and the attention span and abilities of the typical infant and toddler, this book is designed as a reference book for parents and others looking for ways to entertain, educate, and enjoy a young child during the…

The formation of attachments is an important phenomenon occurring in the realm of socioemotional development. This study examined the impact of infant massage on infants' subsequent attachment security. Fifty-seven mother-infant dyads (48 dyads from Head Start, 9 from the community at large) were randomly assigned to a treatment or control group…

Development of object identity was studied within the framework of a hiding game that varied the objects themselves instead of their spatial positions. (Authors)

Data from infants unable to complete experimental sessions were compared to those for whom there were complete data. Results suggest that the elimination of large numbers of infants may have a potentially biasing effect on reported data. (Authors)

Analyzes conversations between one mother and her 22-month-old child, describing sequences the pair used in clarifying each other's focus of attention and in instructing and learning about concepts and motor skills. Results highlight the importance of the intensive learning environment provided by home conversations. (RH)

Interactions of adults with a single infant, dressed as either a male or female, were recorded and analyzed for direction of gaze, facial expression, physical contact, and toys used. Interviews followed. Results shows that both male and female parents behave differently toward unfamiliar infants on the basis of perceived sex. (AOS)

Three children were observed in their homes approximately once a month for one year, from their 11th through 22nd month of life. Based on observation of the children's changing nonverbal behaviors, a five-level developmental sequence documenting the evolution of the cognitive notion of agent was developed. (Author)

Fifteen pairs of twins were investigated as to the influence of pre-walking practice in an infant walker on the onset time of independent walking. A one-way analysis of variance indicated there was no significant difference between the mean ages of initial walking for the experimental and control groups. (Author/PN)

In two sessions, the duration and tempo of toy play of infants and reaction of frustration were measured. Correlations indicated a general relationship between response persistence during play and attempts to escape frustrating situations. (Author/CM)

Differences in response of four- to seven-month-old infants to tachistoscopically presented photographs of two human faces suggest infants were able to remember a frequently presented face from trial to trial and discriminate it from a discrepant, infrequently presented face. Findings suggest event-related brain potential (ERP) responses could…

Results of two studies were consistent with the view that 3-month-old infants perceive movement in depth during their own movement. They can move to avoid a surface just prior to contacting it. (Author/RH)

Two studies (one cross-sectional and one longitudinal) examined the relation between two developmental trends in play during the second year of life: the emergence of decentered acts, and the integration of separate acts into simple sequences. Subjects were infants aged 13, 19, and 24 months. (CM)