Studied the case of bilingual acquisition across two modalities to examine diverging hypotheses about the types of knowledge underlying early bilingualism. Three children acquiring Langues des Signes Quebecoise and French, and three children acquiring French and English were videotaped over a year while novel and familiar speakers of each child's…

When vocalizations of three-month-olds (N=40), experiencing either conversational turn-taking or random responsiveness of an adult, were counted and categorized, results indicated that turn-taking caused changes in the quality of vocal sounds. When the adult maintained a give-and-take pattern, the infants produced a higher ratio of…

Describes a study which sought to determine the developmental stage at which children begin to differentiate specific and neutral contingent queries. The study manipulated the familiarity of the adult listener by having each of the 22 children interact both with the mother and with an unfamiliar adult experimenter. (SED)

Examined young children's language productivity with newly learned forms by teaching them four new words: two nouns and two verbs. Findings indicate children combined the novel nouns productively with already known words much more often than they did the novel verbs--by many orders of magnitude and several children pluralized the new nouns,…

Examines the possibility that bilingual experience in infancy may affect the unfolding of vocal precursors to speech. The results of this longitudinal study indicate that infants reared in bilingual and monolingual environments manifested similar ages of onset for canonical babbling (production of well-formed syllables), an event fundamentally…

The influence of information level on the production of accuracy of 20 children was examined. Data were children's productions of nouns in sets of utterances referring to triplets of pictures representing noun-verb-noun utterances. (Author/JL)

Examined the distribution of two Hebrew nominal structures in spoken and written texts of two genres produced by 90 native-speaking participants. Written texts were found to be denser than spoken texts lexically and syntactically as measured by a number of novel N-N compounds and denominal adjectives per clause; in older age groups this difference…

Fourteen Mother-Infant pairs were studied at three, six, and nine months to determine whether mothers simplify speech during the second half of the infant's first year and whether speech adjustment influences later language acquisition by infants. A mother's mean length of utterance (MLU) was predictive of later language development by her infant.…

Examined how Italian day-care teachers (N=5) spoke to young children and adjusted their language according to age and size of groups. It was found that teachers made both structural and functional modifications of language according to childrens' ages and the size of groups, with group size exerting a greater influence on the features of the…

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…

Investigated how prosodic cues in motherese assisted infants' language acquisition. Infants oriented longer to speech interrupted at clausal boundaries than to matched speech interrupted at within-clause locations. The prosodic qualities of motherese provided infants with cues to units of speech that corresponded to grammatical units of language.…

Re-examines research literature supporting the idea that infants and young children simultaneously learning two languages mix elements from the two languages. It is argued that, contrary to most extant interpretations, bilingual children develop differentiated language systems from the beginning and are able to use their developing languages in…

Proposes that the optional subject phenomenon in early child language arises because children have not yet acquired the morphological elements (primarily modal and tense) necessary to distinguish subject-taking verbs (e.g., finite verbs) from their non-subject-taking counterparts (e.g., infinitives). (Author/CB)

Bilingual case study of infant acquiring Spanish and English from birth to 1;10 is used to address whether young bilinguals differentiate between their languages based on language choice. Daily diary records and weekly video recordings in the two language contexts were used to construct the child's lexicon and establish that translation…

To examine the persistence of phonological selectional constraints on young children's lexical choices, the words attempted in the conversational speech of a longitudinal sample of 12 normally developing preschoolers from age 2;0 to 5;0 were scored for syllabic length, presence of consonant clusters, and distribution of constituent phonemes. (29…