Journal of Child Language最新文献

We present an exploratory cross-linguistic analysis of the quantity of target-child-directed speech and adult-directed speech in North American English (US & Canadian), United Kingdom English, Argentinian Spanish, Tseltal (Tenejapa, Mayan), and Yélî Dnye (Rossel Island, Papuan), using annotations from 69 children aged 2-36 months. Using a novel methodological approach, our cross-linguistic and cross-cultural findings support prior work suggesting that target-child-directed speech quantities are stable across early development, while adult-directed speech decreases. A preponderance of speech from women was found to a similar degree across groups, with less target-child-directed speech from men and children in the North American samples than elsewhere. Consistently across groups, children also heard more adult-directed than target-child-directed speech. Finally, the numbers of talkers present in any given clip strongly impacted children's moment-to-moment input quantities. These findings illustrate how the structure of home life impacts patterns of early language exposure across diverse developmental contexts.

Late talkers (LTs) exhibit delayed vocabulary development, which might stem from a lack of a typical word learning strategy to generalise object labels by shape, called the 'shape bias'. We investigated whether LTs can acquire a shape bias and whether this accelerates vocabulary learning. Fourteen LTs were randomly allocated to either a shape training group (M_age = 2.76 years, 6 males), which was taught that objects similar in shape have the same name, or a control group (M_age = 2.61 years, 4 males), which was taught real words without any focus on object shape. After seven training sessions, children in the shape training group generalised trained labels by shape (d = 1.28), but not unfamiliar labels. Children in the control group extended all labels randomly. Training did not affect expressive vocabulary.

Two major trends on children's skills to comprehend metaphors have governed the literature on the subject: the literal stage hypothesis vs. the early birds hypothesis (Falkum, 2022). We aim to contribute to this debate by testing children's capability to comprehend novel metaphors ('X is a Y') in Spanish with a child-friendly, picture selection task, while also tracking their gaze. Further, given recent findings on the development of metonymy comprehension suggesting a U-shaped developmental curve for this phenomenon (Köder & Falkum, 2020), we aimed to determine the shape of the developmental trajectory of novel metaphor comprehension, and to explore how both types of data (picture selection and gaze behavior) relate to each other. Our results suggest a linear developmental trajectory with 6-year-olds significantly succeeding in picture selection and consistently looking at the metaphorical target even after question onset.

We present a new corpus of child and child-directed speech (CDS) in Palestinian Arabic. It includes transcriptions following the CHILDES guidelines and features recordings of 16 monolingual Palestinian Arabic-speaking children with an age range of 19–58 months and their adult interlocutors. We analyse the children’s morphosyntactic development and identify a variety of target word orders (45 in child speech, 50 in CDS), with prevalent SV(O) structures; we also found high rates of null subjects in both populations, marginal errors in children’s verbal agreement morphology, and early emergence of serial verb constructions, observed from 23 months of age.

This study assessed the association between home learning environment (HLE) at 3 years of age and children’s concurrent and longitudinal vocabulary skills. HLE consisted of the following activities done with primary caregivers: storytelling, drawing, music, toys and games, everyday home activities, playing outdoors, and reading. Results demonstrated that a higher HLE score at 3 years was concurrently related to higher expressive vocabulary and grammar scores, and longitudinally to higher receptive language scores from 5 to 9 years of age. Taken together, these findings suggest that children’s HLE represents a significant contributor to children’s concurrent and longitudinal language skills.

We present the typological approach to child language research. The typological approach places language diversity at the centre of acquisition research, thereby limiting arbitrary adjustments to theory and practice. We apply the typological approach to Ingram’s (2002) measures of whole-word phonological complexity (PMLU) and proximity (PWP). Our generalised PMLUg measure takes into account crosslinguistic variation in word status, including complex predicates and words without vowels. We analysed conversational data from Dutch, English, Japanese, Portuguese, Spanish, and Xi’iùy to determine whether two-year-old children target and produce words with significant between-language differences in phonological complexity. We found significant between-language differences in PMLUg for the target and produced words, but not PWPg. Comparing the complexity of the children’s words with the complexity of target words reveals their growth potentials along the syllable and consonant dimensions. Our study begins the cumulative investigation of the features that determine whole-word phonological complexity and proximity crosslinguistically.

We examined the direct and indirect associations between home literacy environment (HLE) and children's listening comprehension and word reading in Chinese. Three hundred forty-seven Chinese kindergarten children (mean age = 74.01 months, 50% female) were tested on measures of pinyin letter knowledge, phonological awareness, vocabulary, word reading, and listening comprehension. Their parents completed a questionnaire about their socioeconomic status and the three aspects of HLE (code-related and meaning-related HLE, access to literacy resources). Results of path analysis showed that access to literacy resources was indirectly associated with both listening comprehension and word reading through the effects of phonological awareness and vocabulary. These findings suggest that in the early phases of language and literacy development, print materials in the home may be important not only for written-language skills but also for oral-language skills.