Previous work indicates mutual exclusivity in word learning in monolingual, but not bilingual toddlers. We asked whether this difference indicates distinct conceptual biases, or instead reflects best-guess heuristic use in the absence of context. We altered word-learning contexts by manipulating whether a familiar- or unfamiliar-race speaker…

When and how do infants learn color words? It is generally supposed that color words are learned late and with a great deal of difficulty. By examining infant language surveys in British English and 11 other languages, this study shows that color word learning occurs earlier than has been previously suggested and that the order of acquisition of…

A crucial part of language development is learning how various social and contextual language-external factors constrain an utterance's meaning. This learning process is poorly understood. Five experiments addressed one hundred thirty-one 3- to 5-year-old children's use of one such socially relevant information source: talker characteristics.…

There is ongoing debate about children's ability to use subsequently acquired language to describe preverbal experiences. This issue was addressed experimentally in this investigation using a novel paradigm. Two-year-old children who lacked color words were individually taught to activate a bubble machine by selecting a particular color of bubble…

Four studies investigated how differential input affects preschoolers' abilities to learn novel color words. Found that four- and five-year olds interpreted novel words as shape terms when ostensive information was provided but as color terms when additional information, contrastive or inclusive, was given. Three-year olds generally did not make…

Examined the effect of linguistic contrast in children's learning of color names. A novel color term for a stimulus color that was contrasted with a child's label helped five-year olds learn the new term. When the contrast was presented more than once, three- and four-year olds performed much like the five-year olds. (BC)