This study focuses on parental use of parentese: the acoustically exaggerated, clear, and higher-pitched speech produced by adults across cultures when they address infants. While previous research shows that parentese enhances language learning and processing, it is still unclear what drives the variability in the amount of parental parentese…

This study aimed to determine whether there is a correlation between maternal conversational participation and the unconventional language of autistic children, and whether the relative vocabulary diversity between mother and child would affect the relationship between them. Participants were 39 autistic Mandarin-speaking children, aged 3-6 years,…

Despite the documented rise of children's use of mobile media devices in the United States, particularly in lower-income homes, there is limited research on how children and parents interact together with these types of devices. This study sought to describe and investigate how parents and their 3-year-old children use one type of mobile digital…

Children's speech is influenced by the speech they hear, in particular by the parental speech addressed directly to them. The aim of this study was to analyse toddlers' speech with their parents and to investigate the influence of specific characteristics of child-directed speech on child speech in real time during mother-child and father-child…

In a changing society where the roles of fathers and mothers in caregiving are becoming more equal, the role of the father in early language development has also changed. We aimed to study associations between paternal factors and early vocabulary development in boys and girls. In a longitudinal cohort study, we examined the growth of expressive…

Parents play an important role in children's language development. To our knowledge, no studies have compared fathers' and mothers' use of gestural and verbal communication in dyadic versus triadic contexts. This study aimed at analyzing similarities and differences in the bimodal communication of parents when they play alone with their infant and…

This study explored associations between mothers' language teaching practices and children's language skills concurrently and longitudinally, while also taking into account the children's sex and mothers' education. Estonian mothers of 76 children reported their language teaching practices at child ages 3;0 and 4;0. Children's language…

Reading a book aloud with an adult, or shared book reading (SBR), is a key aspect of children's early experiences with literacy and one that can vary based on social and cultural factors. Based on a sample of 30 Mexican and Dominican families from the New York metro area, the present study investigated book reading strategies used by parents of…

Vocabulary size is a crucial early indicator of language development, for both monolingual and bilingual children. Assessing vocabulary in bilingual children is complex because they learn words in two languages, and there remains significant controversy about how to best measure their vocabulary size, especially in relation to monolinguals. This…

Mind-mindedness (MM), the parent's propensity to treat their young child as an individual with a mind of their own, has repeatedly been found to be positively associated with subsequent child development outcomes. In the current Swedish study, the first aim was to investigate the main features of MM in this cultural context and the second aim was…

The neuropsychological profile associated with sex chromosome trisomies (SCT) is frequently characterised by delays or deficits in linguistic development. Although maternal input could have an important role in influencing and shaping the linguistic development of children with SCT, there is a lack of studies in the literature that have…

The study adopts a multimodal perspective, looking at adults' use of gestures in variation sets (VS; i.e. sequences of partial self-repetitions occurring in successive utterances of varying form) addressed to Spanish-learning toddlers in adult-child interactions. We seek to address the following question: Do adults make simultaneous use of VS and…

This study examined Japanese-speaking mothers' passives in the child-directed speech from the CHILDES database. We selected five parent-child corpora and analyzed the overall distribution of the mothers' passives and further investigated the contribution of the construction and the passivized verbs to sentence meaning. The findings were as…

Studies of the acquisition of verbs tend to focus on one-verb predicates of the prevalent English type. But in hundreds of languages around the world, multi-verb predicates like serial verb constructions are widely used. It could be reasoned that children should begin producing simple, single-verb predicates before they are able to produce…

A 7-year longitudinal study was conducted as part of the French national cohort ELFE (N = 1095). The aim was to identify how and why early language skills at 2 years might predict later literacy skills assessed successively at 5, 7, and 9 years (LitSk5y; 7y; 9y). Using one and the same model, we also examined the relations between literacy skills…