Sixty primiparous parents recorded the questions asked when they telephoned others to announce their baby's birth. Eighty percent of the initial questions were about the baby's gender. Questions about mother's health and baby's characteristics typically were second and third, respectively. (Author/RH)

Two studies were conducted in which college students and mothers were asked to rate unfamiliar infants shown on videotapes. Infants were described as either full-term or premature and as either male or female. Infants labeled premature were rated more negatively than those labeled full-term, but infants labeled male and female were rated…

The early psychomotor development (DQ) of 29 term small-for-gestational-age Brazilian infants was shown to be more dependent on postnatal growth than the DQ of 51 term appropriate-for-gestational-age infants. (Author/RH)

Two experiments were conducted to (1) replicate the findings of habituation of behavioral responding to a tactile stimulus assuring state control and (2) demonstrate dishabituation either by reinstatement of responding to the original, habituated stimulus or to novel stimuli either within or between modalities. Subjects were newborn Caucasian…

Investigated the influence of arousal level on visual preferences by observing the looking preferences of 12 full-term neonates twice; once before feeding while unswaddled and once after feeding while swaddled. (Author/RH)

A total of 23 infants were longitudinally studied to ascertain how kind and amount of prereaching activity changes with age during the first four months of life. Substantial changes were observed in the pattern of prereaching around two months of age. (RH)

Two experiments examined changes in the search of infants aged six, seven, and eight months. Experiment 1 found that the majority of infants displayed transitional search before intentional search. Experiment 2 showed that the infants' awareness of a hidden object develops gradually. (Author/RH)

Two experiments were conducted to test effects of infants' ability to locomote on their social and exploratory behaviors. Results indicated that walker-assisted or independent locomotion afforded similar experiences within a standard environment but experiences quite different from those of the nonlocomoting infant. (Author/RH)

Two studies were conducted to (1) develop measure of infants' executive capacity, defined as difference between infants' most sophisticated level of functioning displayed first in free and then in elicited play and (2) to test several hypotheses regarding relationship between these performance and competence measures of child functioning and home…

Examined the development of pattern recognition in infant pigtailed macaques using the familiarization novelty technique. Results indicate that by at least 200 days postconception subjects show a consistently reliable visual response to novelty. (Author/RH)

Investigates the effect of target size and presence, intensity, and location of sound on the visual following of infants one and two months of age. (Author/RH)

Two experiments examined the effects of a change in a reinforcing stimulus's color on memory for an operant response in three- to four-month-old infants. (Author/RH)

A go/no-go conditioned head-turn paradigm was used to examine the abilities of 6- and 12-month-olds to discriminate changes in temporal grouping and their perception of absolute and relative timing information when listening to patterns of white-noise bursts. (Author/RH)

In three experiments, one-year-old infants were observed responding to mechanical, noise-making toys that operated predictably or unpredictably. Interest centered on (1) whether increasing temporal predictability would reduce distress, (2) causes of reduction in distress, and (3) the role of information about the onset of each bout of stimulation…

Fifty-seven children were seen in interaction with their mothers, at 12 months and again at 18 months of age. The observational sessions included a teaching/learning task in which aspects of the mother's teaching style and the child's task orientation could be assessed. Additionally, assessments were made of "difficultness" and the child's…