In this study of early peer interaction, 32 first born infants (16 boys, 16 girls) were videotaped in pairs at 6, 9 and 12 months. Each 15 minute session consisted of Toys Present (TP) and Toys Absent(TA) conditions counterbalanced across dyads. Three questions were addressed: (1) Are infants as young as 6 months capable of interacting with a…

This study examined mother/child interactions during feedings for full-term, healthy premature, and sick premature newborns. Ten first-born infants in each of these categories were observed with their parents once in the hospital, twice at home, and once in the laboratory during the first 4 months of life. Observations focused on the position in…

This study examined the differential effects of sex of parent, sex of child, and sex of stranger on infant behavior in a stranger-separation situation. Year-old infants (16 males and 19 females) from middle-class families were observed and videotaped twice, at one-week intervals, in a modification of Ainsworth's laboratory stranger and separation…

The influence of age, sex, representational detail of objects (prototypicality) and adult play suggestions on children's progression of pretend behaviors was studied. A checklist was developed and utilized for coding the responses of 20 children (10 males, 10 females), to objects judged to be high and low prototypical by 12 adults. Children ranged…

This paper presents arguments for greater use of sophisticated research strategies and statistical analyses of data in dealing with the real-life complexity of social interaction. Three possible procedures are proposed and illustrated in a study of interactions between mothers and their 8- to 18-month-old children. The first strategy is to…

Theories and descriptions of various infant fear behaviors are presented in this paper. Five examples of fear are given: (1) learned fear, in which the infant associates some unpleasant action with an agent, (2) unlearned fear, in which the infant experiences an intense sensory phenomena such as a loud noise, (3) stranger anxiety, (4) fear caused…

This study compares interactions between infants and parents to interactions between infants and strangers. Infants from 2 weeks to 6 months of age were taped in face-to-face interactions with unfamiliar male and female adults. Tapes of parent-infant interactions were available from a prior study. Specific infant and adult behaviors were coded and…

An experiment was performed to show that infants perceive auditory and visual stimuli within a common space and that they perceive the sound as an attribute of the visual object. Subjects were 22 infants aged 3 to 5 months. Each infant was presented with a toy that moved in a small arc from side to side of a small window at the rate of one arc per…

This study investigated at the age at which infants become able to discriminate between their mothers and females strangers, as measured by differential patterns of pauses during the infants' crying while being spoken to by their mothers and female strangers. The subjects, 14 infants ranging in age from 7 to 20 days, were fed, burped, and changed,…

This paper explores the effects of infant predominant state of arousal upon very early mother-infant interaction, through observation of a group of 20 healthy 3-day-old nursery roommates and their mothers during hospital feeding sessions. In an experimental procedure involving a modified time-sampling technique, two observers simultaneously…

This paper describes five experimental studies which explored the influence of fathers' home caregiving and interactional characteristics on their infant's laboratory behavior. Approximately 300 families with children ranging in age from 6 to 24 months were studied. Each infant's reactions were observed as a function of the manipulation of the…

This paper presents some findings of a detailed analysis of infants' approach behavior in a familiar, naturalistic setting. A total of 26, white, middle-class infant-mother pairs were observed in the home every three weeks during the first year of the child's life. Instances of infant approach to both mother and observer were coded from the…

The behavior of the infant with prenatal drug exposure (PDE) is different from a nonexposed infant, and it is a difference that changes the rules of interaction for the caregiver. Infants exposed to opiates such as heroin or methadone demonstrate very specific signs of neurobehavioral dysfunction as they go through classic withdrawal symptoms.…

This paper reports on a followup study of the long-term effects of infant care patterns among the Logoli people of East Africa. In the original study, 12 infants, ages 7-13 months, were observed to obtain a measure of the frequency with which the infant was held by the mother and others, latency of response to the infant's crying, and the number…

Papers and discussants' comments from a symposium on issues concerning infants' reactions to strangers are presented. Researchers agreed that there is a developmental shift in infant behavior at 7 to 9 months of age when the infant becomes more cautious in approaching strangers. However, investigators hypothesize that the presence of the mother,…