A follow-up investigation of 68 children 10 years of age who had been assessed originally at ages 4, 8, 13, and 27 months, did not reveal strong relations between infant variables (such as attentiveness, vocal excitability, irritability, or activity) and reflection-impulsivity, intelligence quotient, or reading ability at age 10. (JMB)

The data indicate that fathers do interact with their infants, and that they demonstrate charactersitic styles of interaction. (Author)

A reanalysis of first-year longitudinal data suggests that infants' reactions to a stranger up through the middle of the first year are attributed to a wariness of the unfamiliar while by 9 months, learned aversions which have their roots in prior disturbing experiences may become an important additional determinant. (Author/JMB)

Twenty infants were observed at home interacting with their mothers, fathers, and an unfamiliar investigator when they were 15, 18, 21, and 24 months of age. (Author/JMB)

Reports research into the visual fixation of 3- to 11-week old infants as they observed adult faces. Reports a dramatic increase in fixations occurred between 5 and 7 weeks for all conditions. (SL)

Face-to-face interaction between 26 infants and their mothers and a relatively unfamiliar figure was observed longitudinally in the home environment when the infants were between 6 and 15 weeks of age. Normative findings indicated that infants became more responsive over this time period, whereas maternal behavior did not change. (Author/JMB)

Groups of 7 1/2-month-old infants heard 1 of 8 episodes consisting of no, slight, moderate, or large discrepancy between a habituated standard and a transformed auditory stimulus. Patterns of cardiac deceleration supported the hypothesis that attentiveness is an inverted-U function of the degree of discrepancy between stimulus event and schema.…

This study constitutes the beginning of a longitudinal investigation of phonological development of four children from birth to 2 years. Little variation was found in mean fundamental frequency. Duration, within-utterance range and variability did show developmental change. (RM)

Twenty-eight 10-month-old infants were observed by two independent teams, one measuring activity in the home situation and one measuring attachment behaviors in a videotaped standard laboratory sequence. (MS)

The short-term reliability and long-term stability of visual habituation and dishabituation in infancy were assessed in a sample of 186 infants from four age groups (3-, 4-, 7- and 9-month-olds) seen for two within-age sessions, and in a sample of 69 infants seen longitudinally at 3, 4, 7, and 9 months of age. (Author/BN)

Data on intentional communication by 15 normal children (ages 11-14 months at outset) were collected at three stages (prelinguistic, one-word, multiword) over the course of a year. All displayed acts for regulating behavior, engaging in social interaction, and referencing joint attention at each stage but with changing proportions. (Author/VW)

Multiple discriminant function analysis was conducted with data from Strange Situations. Results enable researchers to obtain attachment classifications directly from scores on interactive behavior and crying during reunion episodes. (PCB)

Assessed behavioral and physiological differences between 61 breast-fed and 39 bottle-fed neonates. Mean postpartum assessment occurred at 37 hours. Results suggest that breast-fed infants had significantly longer heart periods, elevated heart period variability, and higher vagal tone than bottle-fed infants. (Author/RWB)

Ability of 26 newborns to imitate facial expressions was examined. When infants observed emotional facial expressions, they did not show imitative matching of the modeled expressions. However, when tongue protrusion was modeled, infants did produce the modeled gesture. (PCB)