We studied spontaneous speech noun-phrase production in eight French-speaking children with SLI (aged 5;0 to 5; 1) and controls matched on age (4;10 to 5;11) or MLU (aged 3;2 to 4;1). Results showed that children with SLI prefer simple DP structures to complex ones while producing more substitution and omission errors than controls. The three…

Is children's language acquisition based on innate linguistic structures or built from cognitive and communicative skills? This book summarises the major theoretical debates in all of the core domains of child language acquisition research (phonology, word-learning, inflectional morphology, syntax and binding) and includes a complete introduction…

In this work, we examine a context in which a conflict arises between two roles that infant-directed speech (IDS) plays: making language structure salient and modeling the adult form of a language. Vowel devoicing in fluent adult Japanese creates violations of the canonical Japanese consonant-vowel word structure pattern by systematically…

This research examines phonological neighbourhoods in the lexicons of children acquiring English. Analyses of neighbourhood densities were done on children's earliest words and on a corpus of spontaneous speech, used to measure neighbours in the target language. Neighbourhood densities were analyzed for words created by changing segments in…

Studies of English and German find that children tend to acquire word-final consonant clusters before word-initial consonant clusters. This order of acquisition is generally attributed to articulatory, frequency and/or morphological factors. This contrasts with recent experimental findings from French, where two-year-olds were better at producing…

This paper concerns the acquisition of the English liquids 1 and r by one boy, Daniel, between August 1968 and March 1970, from the age of 1 year 6 months to 3 years 1 month. This study follows the model proposed in Stampe's "The Acquisition of Phonetic Representation," in which the child's pronunciation is derived from his mental representation…

This paper attempts to demonstrate that children do not necessarily acquire fricatives before affricates. It begins with a summary and explanation of relevant parts of R. Jakobson's general theory of phonological acquisition. In part 2, an account of one child's acquisition of English affricates and fricatives is presented. In the period studied,…

This research explores the role of phonotactic probability in two-year-olds' production of coda consonants. Twenty-nine children were asked to repeat CVC non-words that were used as labels for pictures of imaginary animals. The CVC non-words were controlled for their phonotactic probabilities, neighbourhood densities, word-likelihood ratings, and…

Describes a study of adult listeners' perceptions of infant babbling. Adult judges were unable to identify language background significantly above chance level. Findings do not support the babbling drift hypothesis which predicts that babbling begins to approximate characteristics of the mother tongue as infants approach meaningful speech. (SED)

Within child language acquisition research, there has been a fair amount of controversy regarding children's knowledge of the grammatical properties associated with verbal inflection (e.g., tense, agreement, and aspect). Some researchers have proposed that the child's early grammar is fundamentally different from the adult grammar, whereas others…

Looks at phonological development in lexical terms and extends the method of Ferguson and Farwell to consideration of syllables within words. The research is directed toward the question of whether children acqure a sound system by following "universal" orders of acquistion or by developing distinct strategies. (EJS)

To test D. Stampe's hypothesis about the development of phonological processes, 60 children (21 to 48 months old) were placed into groups based on mean length of utterance (MLU) and chronological age. MLU was found to be the best classification for describing the phonological processes. (Author/SEW)

Two lawful relationships involving word-initial onset clusters have been advanced in the acquisition literature; namely, that clusters imply affricates, and that liquid clusters imply a liquid distinction. This study evaluated and extended the validity of these implicational laws in a population of 110 children (aged 3;0 to 8;6) with functional…

A study of the utterances of young children, aged 7 to 22 months, is described. These utterances, varying in length from one to 17 syllables, contain only suprasegmental information because the verbal content was incomprehensible to hearers who were not acquainted with the child and the situation in which the utterances occured. In the corpus,…