Background: The facilitating role of sleep for language learning is well-attested in adults and to a lesser extent in infants and toddlers. However, the longitudinal relationship between sleep patterns and early vocabulary development is not well understood. Methods: This study investigates how measures of sleep are related to the development of…

Reading difficulties and disabilities present serious and potentially lifelong challenges. Children who do not read well are more likely to be retained a grade in school, drop out of high school, become a teen parent, or enter the juvenile justice system. Building on the extant research and seminal studies, including the National Reading Panel and…

A major theoretical issue in the study of language processing and language acquisition is whether language development is independent of other aspects of cognitive development, encapsulated in a "language module." This issue is discussed as it relates to lexical processing. The paper begins with a historical contextualization of the modular view…

Examination of object word learning and use in beginning (vocabulary of less than 50 words) and advanced (vocabulary of more than 50 words) infant speakers indicated that both groups formed concepts, learned, and generalized words for the to-be-learned objects. Advanced speakers learned more words and concepts and engaged in broader generalization…

Evidence from children's performance in a variety of tasks suggests a change in the kinds of similarities children notice and use. Children tend to focus on literal similarity and then shift to the use of common objects, followed by common relations between objects, and finally relations between relations. Research from a variety of different…

Addresses two questions: (1) When do children who are bilingual from birth become aware that they speak two languages? and (2) What are the factors that lead to this awareness? The subjects in the study described here were Italian/German bilingual children living in the Italian region of Alto Adige. (CFM)

Semantic or vocabulary errors were measured among 6 children with autism and mild learning disability (ages 7-8) and 6 with mild learning disability. Vocabulary errors were similar, except under extension, which was not used by children with autism. Children with autism tended to use all mechanisms in order to name something. (Contains…

The confounding of chronological and educational age and of schooling and socioeconomic status are persistent problems in the study of the cognitive consequences of schooling. The educational system among the Kharwar in India provides a natural experiment to overcome these problems, since it shows neither source of confounding. The sample…

A preliminary study was conducted to identify the precipitating conditions and strategies used for vocabulary acquisition and to relate these findings to one theory of elementary and post-elementary cognitive development. Twenty-six college seniors were asked three questions regarding precipitating conditions and strategies used for vocabulary…

This exploratory study was conducted to interpret age and individual differences in 48 kindergarteners' and second graders' performance on a referential communication task in light of the Pascual-Leone Theory of Constructive Operations, a neo-Piagetian theory of cognitive development. Stimulus materials were black and white photographs of dogs,…

A study explored working memory (WM) capacity, WM task requirements, as well as effects between WM, skills, knowledge base, and intelligence in adults with mental retardation and children aged 3-6 years. Adults were better on measures reflecting skills and knowledge base. Children performed better in phonological and visuo-spatial WM tasks.…

This paper reports on an experiment undertaken to delineate more clearly the relationship between the naming process in children and certain aspects of the environment which may play a role in that process. The investigation concerned the effect of manipulation and of object novelty on naming. Sixteen children, ten girls and six boys, ranging in…