This investigation challenged the causal relationship implicit in the search for behavioral predictors in infancy of later intellectual ability and demonstrated the primacy of infant mental scale scores in the causation of later, more concrete physical behaviors. (Author/JMB)

Developmental rates and standard scores are examined for 56 infants in four gestational age groups by repeated measurements on the mental scale of the Bayley Scales of Infant Development. (Author/JMB)

An infant control habituation-recovery procedure was used to study 3-month-old infants' discrimination of sad, happy, and surprise facial expressions. (Author/JMB)

A comparison was made of the behaviors of 64 12-month-old infants in situations where adult female strangers played either an active or a passive role. (Author/JMB)

Temporal stability of play behavior and its consistency among toys differing in complexity was assessed by observing 40 eight-month-old infants. The relationship of stability of play to temperament was examined. Findings support the idea that behavioral consistency in infancy is similar to that reported for older children. (RH)

Two experiments assessed the importance of form versus function in 2-year-old infants' categorizations. Nonsense objects were constructed to independently vary form and function. Adults differentially directed subjects' attention to one or the other stimulus dimension. It was hypothesized that children's conceptualizations would vary as a function…

Proposes, as an alternative to Sokolovian models, a model of early habituation based on selective adaptation of feature detectors. The model suggests that early habituation is attributable to the organization and immaturity of the young infant's visual system. (RH)

Investigated changes in non-nutritive sucking behavior of premature infants when light stimulation was presented. Results generally support past evidence that premature infants are capable of making orienting and discriminative responses to visual stimuli and chronological age effects were indicated. (DP)

Child-care practices generally reflect society as it was, not as it is coming to be, and child-care books contain little that is factual. (AB)

Tests the hypothesis that developmentally delayed children differ from normal children on tasks involving discernment of nuances, balancing competing stimuli, or acquiring and retaining selected information. Attention deployment behaviors in a free-play situation were examined for three groups: normally developing, Down syndrome, and…

Studies the reactions of 24 infants 18 to 24 months of age to simulated and naturally occurring incidents of distress in others. Additionally investigates the relationship between self-recognition and infants' prosocial or altruistic responses to others in distress. Results provide strong evidence for infants' tendencies to help and comfort.…

Found that infants who were delivered with their head turned right exhibited a neonatal right supine head orientation and a right-hand preference in visually guided reaching tasks at 19 weeks of age. Contrary to prediction, infants delivered with their head turned left did not exhibit a left-sided preference in either neonatal head position or…

Twenty-two infants (6.7 to 12.3 months old) were tested on a visual-cliff apparatus both crawling and in a walker. Results suggest a maturation-based explanation of cliff-avoidance in infants. (CM)