Examines the course of emotion expression development during the first 2 years of 58 full-term and preterm children through videotapes of mother/infant pairs. Mothers' contingency behavior appeared to have an effect on emotional development, as did birth status and gender. Prematurity was associated with differential socioemotional development.…

Assessed maternal sensitivity and infants' attachment behavior to test validity of a system of classifying attachment relationships at home. Subjects were 47 mothers of preterm and 42 mothers of full-term infants. Results reaffirm Ainsworth's conceptualization of distinct attachment relationships. (HTH)

Evaluated the effect of pacifiers and sucrose stimulation on the heart rate, coordination, and behaviors of normal infants and infants born to methadone-maintained mothers. Found that pacifiers stimulated immediate changes in all behaviors, which returned to baseline levels when pacifiers were removed. Sucrose stimulation precipitated gradual…

Examined associations among parents' characteristics, prenatal expectations for and postpartum perceptions of infant temperament, and observers' ratings of temperament. Found that parents shared expectations for infant's emotional expressivity but differed in expectation for predictability and adaptability. Parent's postpartum ratings of…

The histories and behaviors of 5 infants with deafness or hearing deficits and other disabilities were compared with 10 at-risk infants with hearing deficits, 8 infants with hearing deficits not at risk for other disabilities, and 20 normal infants. Mothers' stress levels and infants' behaviors were assessed for the three groups. (SW)

Compared infants who had evidenced similar levels of crying as neonates but differed at five months of age. For initially high-crying infants, mothers' personality and marital quality, and infant variables discriminated stable from changing infants. Mother sensitivity and infant responsiveness at five months were related to continuity of infants'…

Investigated developmental change in symbolic representational ability by examining infants' imitation of vocalizations, words, visible motor actions, and nonvisible motor behaviors at ages 10, 13, 17, and 21 months. Results revealed a pattern of increasing imitation, supporting the view that a domain-independent representational capacity develops…

This study of five month olds compared global maternal opinion with reports on direct observation by mothers and observers. A common set of behaviors thought to index temperament was evaluated. Observers recorded infant behaviors on two home visits. Mother-observer agreement for assessments based on home visits was significant. (SH)

Used an event-based approach to study the nature of coordination in 3- and 6-month olds during interaction with their caregivers. Found that infants coordinated their vocalizations and facial actions more than expected by chance. When two communicative events were temporally associated across modalities, one event tended to be embedded within the…

This study examined developmental characteristics of 82 deaf and hard-of-hearing children identified through the high-risk registry in Colorado either before or after 6 months of age. Children identified early and receiving intervention two to three months after identification had significantly higher levels of receptive and expressive language,…

Proposes to identify the mechanisms underlying the links between maternal attention directing strategies and infants' focused attention. Observes onset and offset of maternal behaviors toward objects and infants' attention in a sample of 50 dyads during the first year of life. Discusses research methods, results, and implications for further…

Observed 12-month olds, with their mothers and independently, acting on objects from home and objects brought by the experimenter as new exemplars of previous toys. Found that conventional actions were more frequent in joint than in independent activity. In independent activity, conventional actions were more frequent with customary than with…

Evaluated role of visual input during reaching and grasping. Found that both infants and adults completed a reach and grasp to a darkened object but used vision when object remained visible. Infants contacted the object more often when it remained visible, although with longer durations and more movement units. Adults reached faster and more…

Examined visual fixation in infants 6 months to 2 years old for fit with theory of attentional inertia. Found that fixations had lognormal distribution, heart rate decreased during a look, and heart rate returned to prestimulus levels immediately before look offset. Older children showed different looking patterns to two types of stimuli; younger…

Presented five- and eight-month olds with silent moving and static video images of self, peer, and doll, and sounds of self and nonsocial objects. Found that recognition of one's image develops through experience with dynamic facial stimulation during first eight months. By five months, infants treat their faces and voices as familiar and social…