A total of 114 infants at three age levels (11, 18, and 28 weeks) were rated by their mothers on a termperament questionnaire and subjected to a habituation procedure. Results suggest that subject loss in habituation studies may be the result of nonrandom individual difference factors and not just the result of temporary fluctuations in state.…

Habituation to single female faces and to single geometric patterns was observed separately in two groups of infants who participated in two sessions separated by 10 days. Habituation was found to be distributed into three patterns and showed moderate but significant reliability between assessment sessions. (Author/RH)

Delay/response inhibition in the presence of an attractive stimulus and compliance with maternal directives in a clean-up task were observed among subjects 18, 24, and 30 months of age. Results suggested (1) achievement of self-control is a major developmental accomplishment, and (2) individual differences in self-control emerge and are…

Challenges the notion that long-term memory retrieval efficiency is a potential source of individual and developmental differences in cognitive functioning. Fourth-grade, eighth-grade, and college-aged subjects participated in a task using the Posner letter matching paradigm and were assessed with tests of verbal and spatial ability. (Author/CB)

Investigates the relationship between self-recognition and self-evaluative emotions in two studies on 27 children aged 9-24 months and 44 children aged 22 months. The results of both studies indicate that embarrassment but not wariness was related to self-recognition. (RJC)

Results suggest that various aspects of Strange Situation behavior are related to both maternal and infant temperament, and that maternal temperament is a predictor of attachment security, particularly for Type A mother-avoidant infants. (Author/RH)

Indicates that the Bayley Scales are a useful assessment tool for characterizing the behavior of premature infants. Results further indicate the need for going beyond summary scores of mental and motor performance and assessing performance in specific areas to obtain a more meaningful picture of individual infants' development. (RH)

Investigated continuities in mother-infant interaction observed at home, maternally perceived infant difficulties, and infant developmental competency. Also assessed were background characteristics and possible variables moderating maternal report of satisfaction with adjustment. A total of 128 dyads were assessed when infants were 6 and 13 months…

Investigated predominant kinds of parent-infant play and individual differences in play style. Participants were 24 families of healthy, full-term, firstborn infants, four boys and four girls at each of three ages: 7, 10, and 13 months. (RH)

Aimed (1) to determine whether a time sampling, frequency-count procedure for assessing mother-infant interaction could capture a set of theoretically important dimensions, and (2) to chronicle both ability and change within the mother-infant relationship. A total of 74 dyads were observed when infants were 1, 3, and 9 months of age. (Author/RH)

A total of 97 children three to seven years of age were identified as high-, medium-, or low-exploratory and participated in both independent sessions and 1 of 2 types of supportive sessions with an adult. Support consisted of either close attention by the adult to the child's exploration or modeling and direction by the adult. (Author/RH)

A path model of genetic and shared family environmental transmission was fitted to general cognitive ability data from 1-, 2-, 3-, and 4-year-old adopted and nonadopted children and their parents to assess the etiology of longitudinal stability from infancy to early childhood. (HOD)

Study of children aged 21 to 31 months tentatively concludes: (1)behavioral tendency to be inhibited or uninhibited with unfamiliar people or during unfamiliar events is moderately stable across time and context; and (2)moderately negative relationship exists between behavioral inhibition and heart rate variability, and positive relationship…

Three studies investigated: the effect of parent involvement on the exploratory behaviors of children rated as high-, moderate-, or low-explorers; whether maternal presence increased the exploration of low-exploratory children, decreased the exploration of high-exploratory children, or both; and whether maternal presence or mother/child…

Twenty-five infants were tested every two weeks on the AB Object Permanence Task, from the time they first reached for a hidden object until they were 12 months old. Results indicate that the AB provides an index of the ability to carry out an intention based on stored information despite a conflicting habitual tendency. (Author/RH)