When English-speaking two-year-olds begin producing polysyllabic words, they often omit unstressed syllables that precede syllables with primary stress (Allen & Hawkins, 1980; Klein, 1981; Gerken, 1994a). One proposed mechanism for these omissions is that children omit syllables at a phonological level, due to prosodic constraints that act on…

Japanese provides a valuable contrast for crosslinguistic studies of noun and verb dominance in early child language, and the effect of input on the early lexicon. In this study, 31 Japanese children between 1;0 and 2;0 and their caregivers were recorded in two contexts: joint bookreading and play with toys. Context had the largest effect, as…

This study aimed to investigate early lexical and grammatical development and their relations in a sample of very immature healthy preterms, in order to assess whether their linguistic development was typical, at risk or atypical. The effects of biological factors and parental level of education on preterms' linguistic development were also…

In our recent paper, "Semantic generality, input frequency and the acquisition of syntax" ("Journal of Child Language" 31, 61-99), we presented data from two-year-old children to examine the question of whether the semantic generality of verbs contributed to their ease and stage of acquisition over and above the effects of their typically high…

This keynote article proposes a new model of language development based on processing, the sole mechanism of acquisition for the Acquisition by Processing Theory (APT). The language module--adapted from Jackendoff's distinction between integration (building complex structures) and interface (facilitating information transfer at the intersections…

This paper proposes a shared, distributed, asymmetrical model for the bilingual mental lexicon. To test the sharing of conceptual relations across translation equivalents, Experiment 1 used the classical priming paradigm with specific methodological innovations, trying to satisfy various constraints that had not been addressed in previous studies.…

Two studies examined the robustness of vocabulary learning through overhearing by testing 48 2-year-olds in contexts in which a potentially distracting activity was present (Studies 1 and 2) and in which the novel word was embedded in a directive rather than a labeling statement (Study 2). The children were equally good at learning a novel object…

Retaining detailed representations of unstressed syllables is a logical prerequisite for infants' use of probabilistic phonotactics to segment iambic words from fluent speech. The head-turn preference study was used to investigate the nature of English- learners' representations of iambic word onsets. Fifty-four 10.5-month-olds were familiarized…

Three types of role reversal imitation were investigated in typically developing 12- and 18-month-old infants and in children with autism and other developmental delays. Many typically developing infants at both ages engaged in each of the 2 types of dyadic, body-oriented role reversal imitation: self-self reversals, in which the adult acted on…

Three commonly mentioned aspects of the idea of spirituality are transcendence, raised awareness and spiritualism. The interrelationships among these three "strands" of spirituality are explored. It is argued that each strand expresses itself along a continuum, ranging from the mundane to the profound. The second part of the article focuses on the…

Learning physics is a complex phenomenon. In this article, we use concepts from the theory of nonlinear systems to study the development of language in classroom science in an experimental unit on chaos theory in a German 10th-grade physics classroom. In ongoing activity, the explanations students developed for phenomena emerged through…

The Klein effect (G. S. Klein, 1964) refers to the finding that high-frequency words produce greater interference in a color-naming task than low-frequency words. The present study used the Klein effect to investigate the relationship between frequency and age of acquisition (AoA) by measuring their influence on color naming. Two experiments…

Background: Whereas many studies have investigated quantitative aspects of book reading (frequency), few have examined qualitative aspects, especially in very young children and through direct observations of shared reading. Aim: The purpose of this study was to determine possible differences in book-reading styles between mothers and fathers and …

Emerging social writing platforms offer possibilities for language learners to collaborate around joint assignments. One such environment is the wiki, generally hosting two prominent modes of usage, web pages and discussion forums. This study investigates software engineering students' use of a wiki as an integrated tool within the frames of a…

The Early Head Start evaluation included 17 sites drawn from the first two waves of programs started more than a decade ago. By design, the Administration on Children, Youth and Families (ACYF) selected programs that would reflect the range of service options and context of all extant program rather than choosing a representative sample. The sites…