This three-part study of early identification of developmental deficiencies in high risk infants was undertaken to determine whether infant performance can be predicted from neonatal and developmental criteria. Part I of the study began in 1977 and used 284 high risk infants as subjects. Part II was initiated in 1978. Subjects were 14 full-term,…

In this study of early peer interaction, 32 first born infants (16 boys, 16 girls) were videotaped in pairs at 6, 9 and 12 months. Each 15 minute session consisted of Toys Present (TP) and Toys Absent(TA) conditions counterbalanced across dyads. Three questions were addressed: (1) Are infants as young as 6 months capable of interacting with a…

Two-year-olds' reactions to strangers were related to ratings of their emotionality, sociability and activity and to ratings of parental love and control by both fathers and mothers. Each child received two sessions with strangers, one male and one female. Four times per session a stranger, in a friendly manner, approached each child as it sat in…

This paper deals with research on the development of infants' ability to perceive invariant features of things and the relation of objects to both the spatial layout of the infants' environment and to themselves. Basic assumptions regarding the perception of invariance are discussed and a theoretical view of the role of motion in the development…

This paper describes the initial organization of the infant's reaction to having his vision occluded by an opaque cloth; traces the development of this reaction over the first six months; and probes the role the occlusion of vision plays in provoking the reaction. Fifty videotaped sessions of infants during two conditions - eyes covered with an…

A looming paradigm was used to determine what depth information infants process in addition to that provided by the expansion of a single, closed contour of an object. A total of 18 male and 15 female infants aged 22-48 days watched a film in which the circular elements and inter-element spaces of the projected image alternately expanded and…

The objective of this study was to provide intensive, consistent experience in the following developmental areas: relation to objects and vocal and gestural imitation. The curriculum was developed in an inner city industry-based day care center with 14 infants aged 8 to 19 months initially. The Hunt-Uzgiris Scales measuring development in these…

This study investigated the common practice in infant research of eliminating from reported data large numbers of subjects who prove uncooperative (sleepy, fatigued, fussy) during the experiment. It was suggested that these excluded infants constitute a special class of subjects and that the inclusion of their data would greatly alter the research…

Results showed that 2- and 3-dimensional forms affected 4- and 8-week-old infant visual behavior differently. (Author/JMB)

A classification and description of cry types stimulated by different internal sources--hunger, pain, illness and alarm. Various features of each type were distinguished by spectrographic analysis. Pain cries seemed to be the basic type from which other types evolve. Comparisons with other studies were made. (AMH)

Results from this study of 110 low-risk, middle-class infants showed that a significantly greater proportion of infants whose mothers worked full-time outside the home were assigned to the category "insecure-avoidant" than infants whose mothers remained in the home throughout their children's first year of life. (PCB)

Changes in children's categorization behavior between 15 and 21 months of age and the relation of these changes to developments in language, object permanence, and means-end understanding are reported. (PCB)

To document movement patterns and to examine developmental interrelationships, the ontogeny of rooting, lip, lateral tongue, mouth opening, biting, and Babkin reflexes and the development of emerging chewing behaviors were observed in two normal infants over a period from 1 week to 35 weeks of age. (Author/RH)

Finds that seven-month-old infants are sensitive to pictorial interposition whereas five-month-old infants are not. Suggests that sensitivity to pictorial depth information first appears between five and seven months of age. (Author)