This study investigates the influence of semantic maturation on early lexical development by examining the impact of contextual diversity--known to influence semantic development--on word promotion from receptive to productive vocabularies (i.e., comprehension-expression gap). Study 1 compares the vocabularies of 3685 American-English-speaking…

This paper revisits the longstanding observation that children produce modal verbs (e.g., must, could) with their root meanings (e.g., abilities, obligations) by age 2, typically a year or more earlier than with their epistemic meanings (e.g., inferences). Established explanations for this "Epistemic Gap" argue that epistemic language…

This study investigates the coordination of matrix and subordinate clauses within finite complement-clause constructions. The data come from diary and audio recordings which include the utterances produced by an American English-speaking child, L, between the ages 1;08 and 3;05. We extracted all the finite complement-clause constructions that L…

The purpose of this study was to understand vocabulary characteristics in toddlers who are late talkers (LT) as compared with age-matched (AM) and vocabulary-matched (VM) peers. The semantic categories (e.g., animals, foods, toys) and the percentage of nouns, verbs, and closed-class words in the vocabularies of 36 toddlers (12 LT, 12 AM, 12 VM)…

Across languages and event types (i.e., agentive and nonagentive motion, transfer, change of state, attach/detach), goal paths are privileged over source paths in the linguistic encoding of events. Furthermore, some linguistic analyses suggest that goal paths are more central than source paths in the semantic and syntactic structure of motion…

How to help babies and young children right from birth to become competent in talking as well as emergent literacy is illustrated by research findings as well as with specific clinical stories. Both kinds of knowledge can serve to galvanize parents and teachers to increase awareness of infant and preschool language development and the crucial role…

Evidence for the role of corrective input as a facilitator of language acquisition is inconclusive. Studies show links between corrective input and grammatical use of some, but not other, language structures. The present study examined relationships between corrective parental input and children's errors in the acquisition of the Spanish copula…

Flexibility and productivity are hallmarks of human language use. Competent speakers have the capacity to use the words they know to serve a variety of communicative functions, to refer to new and varied exemplars of the categories to which words refer, and in new and varied combinations with other words. When and how children achieve this…

Concerns the language development of four children between the ages of 19 and 26 months, as they progressed from single-word utterances to a mean length of utterance of 2.5 morphemes. The observed developmental sequence is described and possible linguistic and cognitive explanations for it are discussed.

Research results show that it may be possible, within limitations, to facilitate discrimination by infants of inappropriate from appropriate verbal descriptions of a visual event, by emphasizing the agent component in a simple sentence. (Author/JB)

In a study of very young children's pronunciation of nouns and verbs, ten children aged 20 to 25 months were exposed to experimental nouns and verbs, which had not yet been comprehended or produced by the children. Each of the objects and actions was given an experimental name based on phonemes in the children's speech. These objects and actions…

Describes a study of young children's production of novel words serving as names of objects and actions, which were matched according to consonant and syllable structure. On each measure, accuarate production of new consonants was greater for the object words, possibly because action words have greater semantic complexity than object words. (SED)

Examines development of verb structures in the multiword combinations of two Korean learners, starting from 15 months of age when both children produced their first word combination. (Author/VWL)

How do children determine the syntactic category of novel words? In this article we present the results of 2 experiments that investigated whether German children between 12 and 16 months of age can use distributional knowledge that determiners precede nouns and subject pronouns precede verbs to syntactically categorize adjacent novel words.…