Infants are thought to be sensitive to frequency in the input as a cue for phonological development. However, linguistic biases such as phonological markedness have been argued to play a role too. Since frequency and markedness are correlated, the two assertions could be different interpretations of data that confound frequency and markedness. In…

The acquisition of systematic patterns and exceptions in different languages can be readily examined using the causative construction. Persian allows four types of causative structures, including one productive multiword structure (i.e. the light verb construction). In this study, we examine the development of all four structures in Persian child…

The world's languages draw on a common set of event components for their verb systems. Yet, these components are differentially distributed across languages. At what age do children begin to use language-specific patterns to narrow possible verb meanings? English-, Japanese-, and Spanish-speaking adults, toddlers, and preschoolers were shown…

In this study, six percent of a 2-year-old child's spontaneous utterances in six 3-hour samples were identified as one of three expressive metalinguistic utterance types: interrogatives, hypothesis tests, and evocative utterances. Evocative utterances were used most frequently. The subject used the strategies to seek nouns 78 percent of the time.…

In a study about the comprehension of anaphoric relationships in text, three anaphoric ties in forward (antecedent-anaphor) and backward (anaphor-antecedent) position were examined with attention to developmental trends. A four-school sample was used, three in the United States and one in New Zealand. A test of comprehension of anaphoric…

Piaget's research on the processes and products of cognitive and representational development in early childhood is employed to outline the bases of early language development. The processes of assimilation and accommodation, leading to horizontal decalage; empirical and reflective abstraction, resulting in schemas and schemes; as well as…

Examines the process of language acquisition as well as scientists' understanding of the intricate process of learning to talk. Specifically addresses: (1) foundations of language; (2) prenatal period; (3) first month after birth; and (4) conversation. Also discusses adult-child activities that stimulate language-learning. (SD)

The study identified communicative patterns of preschool children (N=11) with handicaps (Down's Syndrome, specific language impairments, and autism). Down's Syndrome children were like normal children of the same language stage on all parameters whereas autistic children scored outside the normal range on all but one parameter. (Author/DB)

Eighty learning disabled (LD) students at four age levels (ranging from 7 to 14) were studied to compare their vocabulary and syntactic maturity with normal children and to describe the developmental trends (using several instruments). (PHR)

The continuity in development of syllable duration patterns was examined in seven young children as they progressed from preword to multiword periods of vocalization development. Results revealed no systematic increase or decrease in the duration of bisyllables produced by the children as a group, whereas lengthening of final syllables was…

In two studies involving seven developmentally disabled children aged 7-14, phonetic sounds and syntactic structures representing different levels of normal development were taught. Results showed that the children's sequence of learning language forms followed the normal developmental model (e.g., earlier emerging forms were acquired in fewer…

This discussion centers on language development in young children particularly as it relates to Piaget's work. The author believes guidelines are lacking for describing structurally the outcome of the language acquisition process at different stages and that there should be more collaboration between linguists and psychologists in this area. (MS)

Six autistic children, age 3-6, and 6 children with Down syndrome were followed over a period of 12-26 months. Autistic children followed the same general developmental path as the Down syndrome children in the acquisition of grammatical and lexical aspects of language. (Author/JDD)

Provides evidence for developmental changes in the composition of the lexicon, reflecting a shift in emphasis from reference, to predication, to grammar. Findings show that the study of qualitative variation in lexical style is confounded by quantitative variation in rate of lexical development. Tables are appended. (Contains 42 references.) (JP)

Analysis of longitudinal data on the phonetic development of Swedish infants (N=4) from 1 through 17 months of age showed five distinct stages in early vocalization development: glottal; velar/uvular; vocalic; reduplicated consonant babbling; and variegated consonant babbling. Comparison with infants of differing linguistic backgrounds indicated…