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…

Vowel production of a 14-month-old girl was studied over a 6-month period. Sixty percent of the vowels were produced correctly. A complex pattern of vowel preferences and errors was partially related to prespeech babbling preferences and strongly related to word structure variables (monosyllabic versus disyllabic). (Author/JDD)

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)

Analyzes preschool class circle time from an ethnographic perspective. Findings suggest that rules, guidelines, expectations, and roles in the event change over time. (RJC)

Explores three explanations for the lack of a relationship between oral language development and reading ability. Presents data which provides evidence for each of the following sources of explanation: (1) inappropriateness of measures used in previous studies, (2) differences between written and spoken languages, and (3) the distinction between…

Luo-speaking children in Kenya responded to a test using nonce forms in morphophonology. Morphophonological processes in the acquisition of Luo plurals and possessives presented different degrees of difficulty for the subjects, with the type of morphophonological alteration in a language likely to affect the rate and order of acquisition.…

A child with chronic otitis media with effusion solved the problem of reduced and fluctuating auditory input with phonological selection and avoidance strategies that capitalized on prosodic cues. Findings illustrate the need to consider interactions among performance, input, and linguistic constraints to explain individual variation in language…

The role of cognitive and linguistic individual differences as well as contextual factors and processing complexity were examined as determinants of pronoun reversal (I/you). It is proposed that pronoun reversals commonly result from a failure to perform a deicitic shift, which is especially likely when children's psycholinguistic processing…

Verb forms used by 14 4-year-olds in their pretend play were investigated in a study of the use of past verb forms to express "unreality." Results suggest that different past verb forms co-occur with different play activities; e.g., present perfect occurring when children implement their plans and communicate within an already…

Three studies examined preschoolers' and kindergartners' learning of correspondences between phonemes and graphemes. Findings suggest that children use their knowledge of letter names and their phonological segmentation skills rather than memorizing these links in a rote, paired-associate manner. (Contains 26 references.) (Author/LB)

Reviews current research on children's concepts and categories that reflects a growing consensus that nonperceptual knowledge is central to concepts and determines category membership, whereas perceptual knowledge is peripheral in concepts and only a rough guide to category membership. Argues that there is no compelling basis in theory or in data…

Comments on the article by Jones and Smith in this issue. Responds to the theses that perceptual information is as much at the core of concepts as is nonperceptual information and that concepts are not represented as such but are computed on-line when needed. Presents a view of the relationship between perception and conceptual knowledge…

Comments on the article by Jones and Smith in this issue. Describes a program of research that demonstrates the important influence of perception on the structure of concepts. Proposes that both perceptual and nonperceptual information are important to conceptual structure throughout the continuum of knowledge acquisition and that perception is a…

Comments on the article by Jones and Smith in this issue. Outlines different perspectives from which the issue of conceptual development is approached, elaborating on the functions concepts serve and variations in those functions. Notes points of agreement with the perceptual knowledge view and offers comments on the research supporting the…