Between their second and fifth years, young children learn approximately 15 new words a day. For every word the child hears, he or she must choose the correct referent out of an infinite set of candidates. An important problem for developmental psychologists is to understand the principles that limit the child's hypotheses about word meanings. A…

Two strategies that children use to figure out new word meanings--attention to linguistic form class and the assumption of lexical contrast--were examined. It was found that very young children use both form class and lexical contrast to interpret new words. (PCB)

This study, involving three toddlers with language impairments, evaluated effectiveness of a lexical facilitation strategy designed to increase the salience or informativeness of target objects relative to other objects and actions in the context. Complications in employing the experimental task in intervention settings are discussed, along with…

This study examined whether toddlers build a repertoire of words as integral sequences of gestures and then differentiate these sequences into their gestural and segmental components. Results demonstrate clear differences in duration and coordination of gestures between children and adults and a shift toward the patterns of adult speakers during…

This study explored effects of training 25 mothers to administer focused intervention to teach specific target words to their toddlers with expressive vocabulary delays. Following treatment, mothers' language input was slower, less complex, and more focused. The children used more target words, more words during play, and had larger vocabularies…

Twenty-seven toddlers identified as showing specific expressive language delay (ELD) were studied and followed through the preschool period. Findings indicated that home-based intervention accelerated vocabulary skills, but did not decrease the likelihood of later phonological problems. ELD was also seen as a self-correcting condition. (PB)