The 'root infinitive' phenomenon in child speech is known from major languages such as Dutch. In this case study, a child acquiring the Papuan language Nungon in a remote village setting in Papua New Guinea uses two different non-finite verb forms as predicates of main clauses ('root' contexts) between ages 2;3 and 3;3. The first root non-finite…

This article demonstrates how the Comparative Method can be applied to cross-linguistic research on language acquisition. The Comparative Method provides a systematic procedure for organizing and interpreting acquisition data from different languages. The Comparative Method controls for cross-linguistic differences at all levels of the grammar and…

One important mechanism suggested to underlie the acquisition of grammar is rule learning. Indeed, infants aged 0 ; 7 are able to learn rules based on simple identity relations (adjacent repetitions, ABB: "wo fe fe" and non-adjacent repetitions, ABA: "wo fe wo", respectively; Marcus et al., 1999). One unexplored issue is…

Most evidence concerning cross-linguistic variation in noun bias, the preponderance of nouns in early expressive lexicons (Gentner, 1982), has come from comparisons of monolingual children acquiring different languages. Such designs are susceptible to a number of potential confounders, including group differences in developmental level and…

This study compared segmental distribution patterns for consonants and vowels in English infant-directed speech (IDS) and adult-directed speech (ADS). A previous study of Korean indicated that segmental patterns of IDS differed from ADS patterns (Lee, Davis & MacNeilage, 2008). The aim of the current study was to determine whether such differences…

Thai has imperfective aspectual morphemes that are not obligatory in usage, whereas English has obligatory grammaticized imperfective aspectual marking on the verb. Furthermore, Thai has verb final deictic-path verbs that form a closed class set. The current study investigated if obligatoriness of these grammatical categories in Thai and English…

The main objective of this paper is to describe the trajectory of Danish children's early lexical development relative to other languages, by comparing a Danish study based on the Danish adaptation of "The MacArthur-Bates Communicative Development Inventories" (CDI) to 17 comparable CDI-studies. The second objective is to address the feasibility…

Describes a study in which an extensive fuzzy boundary was identified within the adult extension of two exemplary object-words, "dog" and "ball." It is argued that there has been an underestimation in previous research of the degree of correspondence that exists between child and adult extension. (33 references) (GLR)

Standard outcome measures used in a referential communication (route finding) task showed that 7-year olds were inferior to 10-year olds and adults in terms of adequacy of messages provided (as speakers) and selection of referents (as listeners). (10 references) (JL)

Investigated the actionality effect in 48 French-speaking children (ages 5;0 to 7;11) by systematically varying the voice of the test sentences and the voice of the interpretive requests. The interaction between actionality, voice of sentence, and interpretive request revealed that the actionality effect depended on the type of task used to assess…

Varying definitions of formulas, or apparently nonproductive utterances in children's speech, are compared, and criteria for formula recognition are reviewed. A preference rule system is proposed, which distinguishes conditions for formula recognition. Formulas found in the data of one child acquiring Irish are examined. (29 references) (KM)

An experimental study examined the comprehension of sentences containing concessive connectives, considered from an argumentative-conclusive point of view, in 8- to 10-year-old French children (n=24). Two tasks were used: (1) subjects had to choose between opposite preceding contexts of sentences and (2) conclusions that could be drawn from the…

Compares patterns of cluster realization from 47 children ranging in age from 3;4 to 6;8 with functional (nonorganic) speech disorders with those reported in the literature for normal acquisition and reveals that these patterns are essentially the same for both groups. (33 references) (GLR)

Examines results of a study of samples of babbling production of 6, 8, and 10-month-old infants from French, Arabic, and Cantonese backgrounds. Various judges were asked to identify those infants from their own linguistics community, with the intention of supporting hypothesis of an early influence on babbling of metaphonological characteristics…

Analyzes the late babbling productions of a French child and compares them with data from similar studies of English and Thai children. Shows that although the French child and his English counterparts share some universal phonetic preferences, a selective, language-specific phonetic acquisition takes place during the babbling stage. (Author/MES)