Four-month-old infants from Boston, Dublin, and Beijing were administered the same battery of visual, auditory, and olfactory stimuli. The Chinese infants were significantly less active, irritable, and vocal than the Boston and Dublin samples, with American infants showing the highest level of reactivity. (Author)

According to attachment theory, the quality of care plays a key role in the organization of infants' secure base behavior across contexts and cultures. Yet information about attachment relationships in a variety of cultures is scarce, and questions remain as to whether Ainsworth's conceptualization of early care quality (sensitivity; M. D. S.…

Four experiments investigating the effects of physical and social variables on the production of pointing in infants 10 to 18 months old are described. In the first two experiments, which were primarily concerned with the relation between reaching and index finger pointing, physical dimensions such as distance between baby and target objects were…

This study was designed to answer the following three questions: (1) Are infants' first words always context-bound when they are initially acquired? (2) Do mothers use infants' first words in a context-bound manner when interacting with their infants? (3) What relationship, if any, exists between infants' initial use of early words and mothers'…

The purpose of this study was to investigate the relationship between infants' attachment to mother and mothers' responsiveness to behaviors of her infant. Twenty-four male and 24 female 12-month-old infants and their mothers were videotaped at a laboratory in the Ainsworth-Wittig strange situation and in a series of subsequent situations designed…

The purpose of this study was to longitudinally examine the development of symbolic play in 2-year-old Japanese infants. The subjects were four children who were individually tested once a month from the age of 12 to 24 months in laboratory settings. Assessment materials consisted of three sets of miniature toys, a doll and junk objects. Each set…

This study examined the development of imitation under naturalistic conditions. Participating were 320 parents, who provided diary records of imitation by their 12-, 15-, and 18-month-old infants over a 7-day period. Approximately half of the infants were first-borns and half had older siblings. The findings indicated that infants of all ages…

Forty-nine German 12-month-old infants and their mothers were videotaped in Ainsworth's Strange Situation; a measure of quality of attachment relationships. Forty-six of these infants were videotaped again at 18-months with their fathers. Results are compared to American samples and discussed in terms of parental attempts to cope with the demands…

Tested visual-perceptual, attentional, and visual-motor skills of 16 school-age children who had been born pre-term and "healthy," and 16 who had been born full-term. Found that compared to subjects born full-term, pre-term subjects performed well on most visual perception tasks, but less well on visual search and visual-motor tasks.…

Using a new temperament inventory (the Japanese Temperament Questionnaire) developed from the free responses of Japanese mothers asked to describe their infants' behavioral styles, 469 mothers rated behaviors observed in their 1-, 3-, or 6-month-old baby. Results suggest that mothers' perceptions of infant temperament are both pancultural and…

Measured 5- and 12-month-old Japanese and U.S. infants' responses to an arm restraint procedure. Found that older infants exhibited shorter response latencies and produced more negative facial expressions than did younger infants. Among five month olds, U.S. infants produced negative facial expressions more quickly than did Japanese infants. (BC)

During observed interactions between mothers and infants in New York, Paris, and Tokyo, mothers responded to infants' exploration of the environment with encouragement, infants' vocalized nondistress with imitation, and infants' distress with nurturance. Cultural differences in maternal responsiveness to infant looking behavior were found. (BC)

In one condition, infants were presented with tongue protrusions and mouth openings modeled by an adult. In another condition, these gestures were simulated by objects. Infants in the first condition reproduced the gestures at significant levels, but infants in the second condition did not. Findings indicate that imitation is a social response.…

Examined relationship of maternal sensitivity and infant temperament to attachment security among Korean 1-year-olds. Found that securely attached infants showed more secure-base behaviors and compliance, enjoyed physical contact, and showed fewer fussy/difficult behaviors than did other infants. Infant gender, but not security status, related to…

This study examined sequential dependencies in behavior of 10 mother-infant dyads recorded when the infants were at 7 and 20 weeks of age in an effort to determine the extent to which individuals behave responsively to their partners during interactions. Ten maternal actions and 10 infant actions were selected in face-to-face interactions. Actions…