Determines the time course of circulating cortisol following circumcision in 80 healthy newborns and investigates whether changes in behavioral state following circumcision in anyway paralleled the adrenocortical time course. Adrenocortical and behavioral data indicated that subjects were able to cope with circumcision trauma. Cortisol levels…

Quantifies behavioral periodicities or cycles during face-to-face interaction between three- and five-month-old term and preterm infants and their mothers. Compares the temporal organization of social interaction between term and preterm infants. Spectral and cross-spectral techniques showed the existence of periodicities. Differences were found…

Preschoolers' normative patterns, individual styles, and developmental changes in coping with anger between others (background anger) were examined. Pairs of children were observed playing while two adults in an adjacent room verbally expressed anger toward each other. Children were also interviewed concerning the feelings they had during the…

Children's ability to produce integrated sequences of discrete behaviors was examined as a function of age and task demands for several behavioral domains. Results are discussed in terms of possible age-related constraints on combinatorial skills that operate at a general, cross-domain level during toddlerhood. (RH)

Reports two experiments in which eight patients with organic memory disorders exhibited a pattern of search behavior that resembled mnemonmic precedence--the ability to retrieve an object at an initial location, but not at a new location. (HOD)

Investigates 57 three- to five-year-old children's sharing of preferred and nonpreferred food with same-sex peers as a function of (1) whether or not the children had previous experience as recipients and (2) whether or not the child was shared with during the experience as a recipient. (HOD)

A concept of seductive mother-toddler relationships was initially validated. Subsequent research showed "seductiveness" was stable, though transformed, from 24 to 42 months; the same mothers were not found to be seductive with male or female siblings; mothers seductive with boys were derisively hostile toward daughters. (Author/RH)

Investigates whether, and under what conditions, mothers of irritable infants, in contrast to mothers of less irritable babies, become less responsive/sensitive over time. (HOD)

Demonstrates that a mother's perceptions of and behavior toward an infant can be influenced by knowing whether the infant was born prematurely or full-term. Differences in maternal behavior arising from this knowledge appear to produce differences in the infant's behavior. (HOD)

Considers three questions: Do mothers of siblings show consistency in behavior to their children when observed with each child at 24 months? What stability is there in behavior of mothers toward their children from 12 to 24 months? Are sibling status or genetic factors related to differences between mothers in relative consistency or inconsistency…

Examines the tendency of observers to make less reliable recordings of behavorial events when a calibrating observer is absent. Using four different multicategory systems, 26 experienced observers coded 200 hours of videotaped family interactions. Concludes that observers lapse into a less attentive "set" prior to coding without a…

Investigates factors associated with outcomes in attachment relationships between 30 well-educated, full-time working mothers and their 18-month-old firstborn sons. Suggests maternal employment effects on mother-son attachment are mediated primarily by a woman's affective state, which becomes manifested in her style of caregiving and child-care…

Examines the ability of six- and eight-year-old children to hide and recover 20 marbles in a large room containing 100 possible sites. Shows that children tend to concentrate activities in sections of the room and are sensitive to clusters of proximal sites. (HOD)

Examines relations between Matthews Youth Test for Health ratings on hyperactive boys and diverse measures obtained from five sources: direct behavior observations; staff evaluations, nonparticipant observer ratings, peer nominations, and self-reports. (HOD)

Using the Ainsworth Strange Situation Procedure, a study examined the interrelations between dimensions of emotion and social interactive behaviors to explore the regulatory role of each in mother-infant interaction and how these roles may change in the second year. (HOD)