This paper reports the effects of one hour of extra post-partum contact between mother and infant on the quality of the attachment observed when the infant was one year old. It was hypothesized that infants in the extra contact condition would be classified as securely attached while regular contact infants would be less frequently classified as…

Traditional research methods of recording infant verbal behavior, namely, descriptions by a single observer transcribing the utterances of a single infant in a naturalistic setting, have been inadequate to provide data necessary for modern linguistic analyses. The Center for Research on Language and Language Behavior has undertaken to correct this…

Three related experiments were conducted to investigate the effects of novel and familiar stimuli on infant attention. The procedure in each of the experiments was to place an infant before a matrix panel composed of six rows of six lights. Two patterns of lights were used to obtain the infants' fixation time: (1) a point pattern, a single…

The effects of obstetrical medication on neonatal behavior were studied using a sample of 64 Israeli infants from medicated and non-medicated mothers. Most medicated mothers received a base dose of 75 mg. of Meperidine plus a base dose of 25 mg. of Phenergan. Other drugs used included Demerol, Valium, Butalgan, Pitocin, Pantopon, Trilene, Naline,…

In this study, free play with toys having unambiguous functions was examined to test the hypothesis that a basic cognitive metamorphosis is associated with the new competences displayed in children at about 12 months. Functional play was observed in 64 children at 9 1/2, 11 1/2, 13 1/2, and 15 1/2 months of age. Six sets of toys with 36…

This study examined behavioral correlates of the rapid central nervous system changes occurring in the first 4 months of life. It was hypothesized that during the early months of infancy, visual preference would occur as a function of quantitative dimensions of the stimuli (size) which could be mediated at a subcortical level. It was further…

This paper briefly reviews studies of infant-peer and infant-mother interaction, and describes a study which compares the effects of mothers and peers on toddler play. Twenty-six toddlers (13 males and 13 females) aged 21 to 24 months were observed in two social situations each: playing with his/her mother, and playing with a familiar peer (after…

In this study, two similar depth perception experiments were conducted to investigate 3-month-old infants' perception of changes in depth while they were being moved. In the first, the subjects, 18 infants (80 to 105 days old) were lowered face down towards the textured floor of a 3-sided enclosure (visual crib). Three experimental conditions were…

Research (1972-74) concerning infant care and development is surveyed, supplementing an earlier review of literature on the same subject. The literature search was performed to provide materials which could contribute to the improvement of services to school-age parents with infants. Studies dealing with infant development (e.g., nutrition, early…

The purpose of this paper is to demonstrate that specific spatial and possibly temporal rates of change dominate early infants' looking, that these spatial and temporal events have meaningful and specific empirical correlates in neurophysiology as a function of age, and finally that neurophysiologically constrained models provide testable…

This report describes the development and testing of a screening method designed to describe the Cornell Infant Nursery environment and infant activities in quantitative terms. The scanning procedure developed is basically a time-sampling way of collecting data on the normal operation of the nursery. Two long lists of variables (categories of…

Based on findings that report differences between cries of normal and clinically abnormal infants, this study examined the relationship between birthweight and behavioral and acoustic features of neonatal cry because of the long-standing association between birthweight, perinatal trauma, and subsequent development. Subjects were 88 neonates…

This study explored the relationship between the mother-infant interaction and the concurrent perceptual-cognitive and intellectual status of the infant. One hundred and eight-nine 12-week-old infants were given a battery of perceptual-cognitive tasks, including the Mental Developmental Index (MDI) of the Bayley Scales, the Corman-Escalona Scales…

Attempts to determine whether infants' performance in two search tasks is related to their entry into Stage 6 of object permanence development (thereby testing Piaget's claim that only Stage 6 infants possess the capacity for representation). (BD)