Temperament development was studied in 39 full-term small-for-gestational-age infants and 30 full-term appropriate-for-gestational-age infants. Temperament was measured at 4, 8, and 12 months of age using a behavioral assessment procedure and questionnaire ratings. Findings indicated that restricted fetal growth negatively affects infant…

Two experiments investigated infants' sensitivity to amount of continuous quantity and to changes in amount of continuous quantity. Found that 6-month-olds looked significantly longer at a novel quantity than at the familiar quantity. Nine-month-olds looked significantly longer at an impossible event than at a possible event. Findings question…

Two experiments examined memory of 7-month-olds after 2-week retention interval for passages of two Mozart movements heard daily for 2 weeks. Results suggested that the infants retained familiarized music in long-term memory and that their listening preferences were affected by the extent to which familiar passages were removed from the musical…

In this study of maternal interpretations of infant behaviors, seven mothers of infants with Down syndrome identified 18 of 22 subcategories of potentially meaningful infant behavior previously identified by mothers of typically developing infants. These seven mothers also identified an additional category: developmental status-abilities.…

Proposes that vocal communion between infant and caregiver supports infants' language acquisition and connectedness with caregivers. Recommends research to determine whether social behaviors such as joint attention and vocal imitation are functionally related to language learning or are only symptomatic of a survival-centered caregiving…

Studied infant temperament in low birth weight (LBW) and full-term (FT) healthy infants in relation to infant temperament and child-rearing stress. Found that although differences between child-rearing stress scores were not significant between mothers of LBW and FT infants, a higher proportion of child-rearing stress could be explained by the…

Three experiments examined vision's role in infants' grasping of horizontally and vertically oriented rods. Found that infants differentially oriented their hand regardless of lighting and similar to control conditions where they could see rod and hand throughout reach. Findings suggest that infants may use current sight of object's orientation or…

Examined maternal care and infant attachment security in a sample from the United States (Colorado) and one from Colombia. Found that maternal sensitivity and infant security were significantly associated in both samples. Identified six common and two noncommon domains (one per sample) of caregiving; associations between domains of maternal…

Maintains that advances in the literature on perception-action development suggests that tool use may be a more continuous developmental achievement than previously believed. Suggests new research directions, including efforts to investigate the processes by which children detect and relate affordances between objects, coordinate spatial frames of…

Observed weekly 13 infants from 1 to 6 months of age to determine when they produced different types of smiling and other facial expressions. Found that the cheek-raise and open-mouth dimensions of smiling appear to be associated with, respectively, amplification of processes of sharing positive affect and of visual engagement present to a lesser…

This research unites traditionally disparate developmental domains--cognition and locomotion--to examine the classic cognitive issue of the development of inhibition in infancy. In 2 locomotor A-not-B tasks, 13-month-old walking infants inhibited a prepotent response under low task demands (walking on flat ground), but perseverated under increased…

To examine the development of triplets, 23 sets of triplets were matched with 23 sets of twins and 23 singletons (N138). Maternal sensitivity was observed at newborn, 3, 6, and 12 months, and infants' cognitive and symbolic skills at 1 year. Triplets received lower maternal sensitivity across infancy and exhibited poorer cognitive competencies…

The impact of differences in maternal self-efficacy and infant difficulty on mothers' sensitivity to small changes in the fundamental frequency of an audiotaped infant's cry was explored in 2 experiments. The experiments share in common experimental manipulations of infant difficulty, a laboratory derived measure of maternal efficacy (low,…

The ability to form secure attachments during early childhood promotes a lifetime of emotional health. This article describes emotional milestones for babies (i.e., activities that promote self-comfort and self-control), as well as for toddlers. In the case of toddlers, a profound emotional milestone that is accomplished during the first year is…

The Parent 'N' Me course at Fitchburg State College in Fitchburg, Massachusetts, is for parents who wish to observe the competency of their 2- to 6-month-old infants, encouraging an infant-oriented environment that allows the infants to become attentive, active, exploring individuals who reward themselves in the mastery of new tasks. The course…