Dynamic analyses of language growth tell us how vocabulary and grammar develop and how the two might be intertwined. Analyses of growth curves between 17 and 42 months, based on longitudinal data for 34 children, revealed interesting patterns of vocabulary and grammatical developments. They showed that these patterns were nonlinear, but with…

Using a picture pointing task, this study examines toddlers' processing of phonological alternations that trigger sound changes in connected speech. Three experiments investigate whether 2;5- to 3-year-old children take into account assimilations--processes by which phonological features of one sound spread to adjacent sounds--for the purpose of…

An intriguing error has been observed in toddlers presented with a 3-location search task involving invisible displacements of an object, namely, the C-not-B task. In 3 experiments, the authors investigated the dynamics of the attentional focus process that is suspected to be involved in this task. In Experiment 1, 2.5-year-old children were…

Previous research using the name-based categorization task has shown that 20-month-old infants can simultaneously learn 2 words that only differ by 1 consonantal feature but fail to do so when the words only differ by 1 vocalic feature. This asymmetry was taken as evidence for the proposal that consonants are more important than vowels at the…

Investigated the role of an external clock in two temporal conditioning situations involving three-year olds. One situation required the spacing of responses to visual stimuli; the other, producing a response for a set duration. Found that the presence of the clock increased the efficiency of performance. (SW)

A study attempted to determine dimensions of maternal adaptation of language to the level of their young children's speech, and whether patterns of maternal adaptation can be described as interactive maternal styles. Links were sought between aspects of maternal language adaptation and child language level. Participating were 6 mother-child dyads…

A fundamental question in developmental science is how brains with and without language compute numbers. Measuring young children's verbal reactions in Spain and Finland, we show that, although there is a general arithmetic ability for small numbers that is shared by monkeys and preverbal infants, the development of such initial knowledge in…

Examines medical, social, demographic, parental, and other variables in relation to early language adequacy or delay in development among native French and immigrant toddlers. (PCB)

Reports the findings of a group established to respond to the request of the Secretaire d'Etat a la Famille for proposals toward an early childhood policy. Describes the range of care for French children under three years. Highlights the disparities in terms of quality, availability, and cost. Offers proposals for correcting these problems. (CB)

This longitudinal, ethological study explores the development of communication behaviors, different types of social peer interactions, and mother-child interaction among 15 boys and 15 girls from 16 through 30 months of age. Each subject was filmed twice each month over a period of 14 months while he or she had lunch with 5 peers. Several subjects…

Language adequacy was coded for 403 toddlers 24 months of age who had received medical and psychological examinations in a Bilan de Sante clinic in Paris, France. The children were from three cultures: native French middle class, immigrant North African Moslem, and immigrant Black African. Demographic, socioeconomic, medical, biological,…

Despite U.S. world leadership in research in child healthcare and development, in all the statistical indicators of children's well-being the United States lags well behind most advanced industrialized societies. This book discusses U.S. public policy issues concerning the healthcare and development of children under age three. Studies are cited…

This document reviews a number of recent studies written in French that investigate the nature of communication between 2-year-old infants and others. The review includes three parts. The first part focuses on studies aiming to constitute a behavioral catalog of the child. Characteristically, these studies offer a posteriori interpretations of…

Discusses the history, characteristics, and purposes of the "ecole maternelle," the French system of free public preschool education for two- to five-year-old children. Focuses on the classes for two year olds, and particularly their enrollment levels, schedules, and links with day care. Describes research on the classes. (BB)

This collection of six case studies is a by-product of a European-focused study that sought to understand the policies focused on children from birth to age 3, whether directly affecting the children or reaching them indirectly through their parents. The study examined the social infrastructure in which the specific "under-3" policies…