What is vision's role in driving early word production? To answer this, we assessed parent-report vocabulary questionnaires administered to congenitally blind children (N = 40, Mean age = 24 months [R: 7-57 months]) and compared the size and contents of their productive vocabulary to those of a large normative sample of sighted children (N =…

Infants are born highly sensitive to the natural patterns found in languages. They use their perceptual sensitivity to acquire detailed information about the structure of languages in their environment. To date, most studies of infant perception and early language acquisition have investigated spoken/auditory languages and hearing infants (e.g.…

The development of native language phonetic representations in bilingual infants was compared to that of monolingual infants. Infants (ages 6-8, 10-12, and 14-20 months) from English-French or English-only environments were tested on their ability to discriminate a French and an English voice onset time distinction. Although 6- to 8-month-olds…

The magnitude of the dichotic right-ear advantage was assessed in 48 normal and 48 learning-disabled children representing an age range of approximately five years. (MP)

There is overwhelming evidence that children's first words are primarily nouns even across languages. These data are interpreted as evidence of a "Natural Partitions Theory," one that holds that the concepts referred to by nouns are conceptually more basic than those referred to by verbs or prepositions. Analysis of data from…

To examine the differences and the unique qualities of third grade writers in relation to their uses of language and their perception of the world, a selection of writings from 20 third grade students was analyzed for language ability as measured by words per T-unit. Then, two students from the higher and two from the lower end of the scale were…

This report presents a description and evaluation of the Cognitively Oriented Urban Prekindergarten Program in West Chester, Pennsylvania, a preschool program for children from low income families and/or one-parent families. The program was designed to form a link between the Early Learning Program of the PRIDE Project and public kindergarten.…

This is a partial report of a longitudinal investigation designed to assess the psychological effects of an experimentally conducted day care program on children during the first 30 months of life. The experimental subjects were Chinese and Caucasian children from working and middle class families who were cared for at a special group care center…