Twenty male and 29 female active-duty Air Force personnel viewed and listened to videotapes of a crying infant and a smiling infant while heart rate, skin resistance, and respiration rate were monitored. Males showed a larger increase in skin conductance and heart rate than females during the crying infant stimulus. (Author/CR)

The objectives of this study were to investigate (1) whether prior opinions concerning a child's sex influence the qualities attributed to the child; (2) whether differences exist in the responses of male and female raters; and (3) the effect of forced-choice responses vis-a-vis non-forced responses. An 8-minute videotape of a 22-month-old infant…

This study was designed to identify aggressive actions in 12-, 18-, and 24-month-old infants and to investigate what type of responses these actions elicit in peers. Nine infants were observed and videotaped in interaction with each other and with toys. The focus was on four 18-month-olds observed in two sessions, one with an older child, the…

This paper reports an 18-month investigation of the differential effects of social context (i.e., characteristics of people in the child's immediate environment) on infants' positive social behavior. The social behaviors of 14 children from 1 to 2-1/2 years of age were observed at home and in a laboratory playroom. The social context was varied…

Visual fixation on one of two blank targets was reinforced with either visual or auditory stimuli in one of 3 intensity sequences: (1) low, medium, high; (2) medium, high, low; and (3) high, low, medium. An analysis of variance of learning scores for the 48 14-week-old infants resulted in a significant interaction of intensity and order and in a…

Seventeen sets of opposite sex twins, 13 to 14 months old, were observed in a playroom situation with their mothers. Attachment behaviors, toy preference, style of play, and activity level were recorded. Analysis of four attachment behaviors indicated that girls looked at, vocalized to, and maintained proximity with their mothers significantly…

To test the inversion of intensity interpretation based on negative relations between newborn and pre-school intensity behaviors, 106 normal children were examined at the neonatal and pre-school periods. Interpretations of intensity behaviors at both periods and their longitudinal relations are discussed. (Author/SB)

During a brief play period away from the mother, the responses of 10-month-old infants were observed as a function of two factors in a 2x2 design: first, whether the mother or the infant initiated the separation and second, whether the mother was visible or not during the separation. (Author/MS)

Stable characteristics of female rhesus monkeys with offspring, in terms of Confident and Excitable scores, were significantly positively correlated with the respective scores of their female offspring but not their male offspring. Female parents' Excitable scores were significantly negatively correlated with males' Confident scores. How this…

Patterns of mothering and fathering in 72 families were observed longitudinally and from the perspective of the family system when infants were 1, 3, and 9 months old. Findings suggested similarities and differences in mothering and fathering. (Author/RH)

Compared with fathers, mothers were more likely to pick up and hold infants, feed and comfort them, and invest time in displaying affection. Although there were sex differences in parents' rough and peek-a-boo play, mothers and fathers treated boys and girls quite similarly. (RH)

Despite previous research indicating that early negative child behavior and the quality of parent-child relationships are predictive of later externalizing problems, few investigators have attempted to trace these antecedents back to infancy. In a sample of 100 infants from low-income families, infant persistence and maternal responsiveness were…

The purpose of this study was to examine Anglo-American and Mexican-American parents' attitudes about infant socialization. Occupational status of fathers was used to identify participants' social class, and mothers and fathers were interviewed in English or Spanish 9 weeks after the birth of their first child. Attitudes were examined regarding…

Because of the sparcity of research on infants' response to social events, especially different categories of people, infants between 8 and 18 months of age were introduced to five different social events: strange adult male and female, strange 4-year-old female, mother, and self. The infants' responses indicated that approach affects stimulus…