The feedback model of maternal language indicates that maternal language development is tailored to child feedback. The conversational model indicates that adjustment in mothers' speech occurs before the onset of child language. In order to verify the validity of these models, the language of mothers of six hearing and six deaf 13- to…

This longitudinal study examines the early stages of language acquisition in four first-born infants from birth to two years. Selected aspects of vocal-verbal behavior exhibited by the children and their parents were examined. Home and laboratory recordings, diaries, interviews, and developmental observation were principal data sources. Substudies…

THE PURPOSE OF THIS STUDY WAS TO FIND OUT IF INFANTS WOULD EXHIBIT BEHAVIORS CONSISTENT WITH PIAGET'S OBSERVATIONS ON THE DEVELOPMENT OF RECIPROCAL COORDINATIONS AMONG THE LOOKING, SUCKING AND GRASPING SCHEMAS. A SECOND PURPOSE WAS TO SEE IF INCREASED LOOKING AT AND TOUCHING OF NEARBY OBJECTS BY INFANTS WOULD RESULT IN ACCELERATION OF THE…

This study investigates the effects of age and prior experience with age-mates on attachment behavior and exploratory play with another child. Twenty home-reared children, half between 18 and 24 months and half between 24 and 30 months, and 20 day care children, also equally divided into the two age groups, were observed in the Ainsworth strange…

Papers and discussants' comments from a symposium on issues concerning infants' reactions to strangers are presented. Researchers agreed that there is a developmental shift in infant behavior at 7 to 9 months of age when the infant becomes more cautious in approaching strangers. However, investigators hypothesize that the presence of the mother,…

This study investigated infant crying as a form of communication, with fear considered only one of many possible motivating emotions. Crying, along with fretting and withdrawal, are the major ways infants have to indicate that they desire to change the present situation. Subjects were 91 white, middle class infants whose mothers wete their primary…

For some time now, classroom teachers have encouraged quiet manners and docile servitude of children who attend school. There is evidence to support the notion that this type of environment is not necessarily the best for maximizing the learning potential of all children. A variety of research efforts indicate that American black children and…

This paper offers some ideas on the types of behavior that can be considered precursors to language and that also lay the foundations for logic, mathematics, physics, etc. The paper posits the problem of whether a theory of language must be formulated before one can formulate a theory of language acquisition, or whether the reverse is true. The…

This study examines the influence of maternal predispositions toward sex-appropriate behavior and the mother's response to "feminine" or "masculine" cues in infant behavior. In the investigation, one 6-month-old male infant was presented to 11 mothers who served as subjects. The infant was dressed as either boy (blue clothes) and named Adam, or…

The present series of studies was undertaken to explore intersensory processing in the very young. In the first experiment 1-, 4- and 7-month-old infants experienced simultaneously their mothers' faces and voices. The various conditions consisted of displacing the voice from the face. The results indicated that infants as young as one month of age…

This orientation manual includes a compilation of activities, curriculum, records, and operating procedures of ongoing infant and toddler group care demonstration projects. The current status of three day care units is described: the Infant Day Care Unit, the Toddler Day Care Unit, and the Toddler Enrichment Unit. The manual serves as a basic…

A research study was conducted to: (1) compare mother and father interactions with their newborn infant; (2) examine the effects of maternal drugs on mother-father infant interaction; (3) explore the impact of variations in length of labor on parent interaction; and (4) examine sex of parent and sex of newborn interactions to determine the nature…

The popular view among American psychologists has been that there is a continuity of psychological structure that is shaped by early experience. Data gathered in studies of Guatemalan villages imply serious discontinuities in the development of particular cognitive competencies and capacities for affect through preadolescence. The first two years…

Infants in four age groups--three, six, nine and twelve months--were exposed to an experimental procedure designed to assess the extent to which such subjects were capable of discriminating between different orientations of the same form, and the extent to which they were capable of recognizing the identity between different orientations of the…

This illustrated booklet describes research procedures in the Infant Laboratory of the Educational Testing Service to investigate measurable factors in infant behavior which can predict intellectual potential. The research is currently focusing on attending, the manner in which infants respond to various stimuli presented to them during their…