Cross-Sectional Trajectories of Mental State Language Development in Children With Down Syndrome

Purpose This article (a) examined the cross-sectional trajectories of mental state language use in children with Down syndrome (DS) and (b) identified developmental factors associated with its use. Method Forty children with DS aged 6–11 years generated stories from a wordless picture book and completed an assessment battery of other linguistic, cognitive, and social–emotional skills. Their narratives were coded for mental state language density (the proportion of utterances containing mental state references) and diversity (the number of different mental state terms used). Results The emergence of mental state language use during narrative storytelling was observed across the sample; 0%–24% of children's utterances included references to mental states, and a variety of mental state terms were produced. Cross-sectional developmental trajectory analysis revealed that expressive vocabulary and morphosyntax were significantly related to increased mental state language density and diversity. Nonverbal emotion knowledge was significantly related to greater diversity of mental state terms used. Age and nonverbal cognition were not significant factors. Conclusions This first in-depth, within-syndrome characterization of mental state language use by school-age children with DS provides an important next step for understanding mental state and narrative development in this population. By identifying skills associated with the development of mental state language, this study provides an avenue for future longitudinal research to determine causal relationships, ultimately informing intervention efforts.

Mental State Expression During Peer Play: A Comparison of Typically Developing Children and Children With Autism Spectrum Disorder

This study examined the relationship between mental state term use in children with autism spectrum disorder (ASD) and typically developing (TD) children engaged in play. Expression of mental state terms was used as an indicator of theory of mind (ToM) skills. Archived data were used to compare mental state term use for five ASD-TD dyads engaged in various play contexts. During imaginative play, children with ASD used fewer cognition mental state terms than TD children but used a similar number of emotion mental state terms. In combination play, both groups used similar numbers of cognition and emotion mental state terms. Play context implicates use of mental state terms in expression in children with ASD. Scaffolding use of mental state terms during play may provide an opportunity for children to use more advanced levels of ToM, including cognitive mental state term expression, when engaged with peers.

Mental state verbs used by mother–child dyads in Japanese and English: Implications for the development of Theory of Mind

Mental state terms are believed to be closely related to the development of Theory of Mind (ToM). This study focuses on mental state verbs (MSVs) and investigates how they are used by Japanese-speaking mother–child dyads compared to their English-speaking counterparts. Analyses of their spontaneous speech from the CHILDES archives show that children’s production of MSVs is greatly influenced by the mothers’ input in both languages and that Japanese MSVs are used less frequently than English MSVs in both the children’s and mothers’ utterances. In addition, the syntactic properties of MSVs show that complements under MSVs tend to be null in Japanese, whereas those in English are more likely to be overtly expressed. This difference observed in the mothers’ input and children’s production can be a contributing factor underlying the developmental delay of ToM in Japanese.

How Do Parents Use Mental State Language During Narration To Their 2- and 4-Year-Old Children?

Parents influence the development of children’s social understanding by using mental state terms that denote concepts which children are about to develop (Taumoepeau & Ruffman, 2006, 2008) or via the usage of contrastive and/or causal mental state talk (Peterson & Slaughter, 2003). The present longitudinal study examined parent-child dyads and assessed parental mental state talk (MST) during picture-book narration. Seventy-four parents told their children a story twice, when the children were 2 and 4 years old. The same wordless picture book was used to elicit the narration at each time point. Two criteria were used to classify MST: type of utterance (affective, perceptual, or cognitive) and complexity of utterance (simple or clarifying). Parental MST was more frequent in narrations to 4-yearolds than to 2-year-olds. Parents directed more complex MST to 4-year-old children than to 2-year-olds. Affective references were most common at both time points, while cognitive utterances hardly occurred. Nevertheless, growing trends were observed in all types of MST. The results suggest that parents match their MST to the children’s level of social understanding development.

Mother–child conversation and social understanding in Pakistan

Two studies are presented to examine whether and why 3–5-year-olds in Pakistan display limited social understanding. Study 1 tested 71 preschoolers on Lillard and Flavell’s (1992) test of desires, pretence and beliefs, plus two false belief tasks, and showed very limited understanding across these measures even though almost half were over 5 years old. Study 2 replicated this effect with 35 preschoolers, and also conducted home observations of mother–child interaction at two time points. It tested three competing explanations of the role of adult-conversation in the preschooler’s developing understanding of the mind: the quality of the caregiver’s references to mental states, the child’s grasp of mental state language in such conversations, and the connectedness of adult–child talk. These factors are usually highly correlated in Western cultures. In Pakistan, with a delay in the acquisition of social understanding skills, Study 2 showed that maternal and child references to mental states were rare (2% of maternal and 1% of child utterances). Analyses of the relationship between mother–child conversation and the children’s test performance suggested that the measures of social understanding were not predicted uniquely by the connectedness of talk within the dyad, or maternal use of mental state terms. However, the children’s concurrent (and to a lesser extent previous) use of mental state terms was related to their grasp of mental states. Thus, the data support previous analyses, which suggests that the child’s construction of mental state terms is more crucial in their grasp of the social world.

Young Children Are More Likely to Spontaneously Attribute Mental States to Members of Their Own Group

We investigated whether young children were more likely to spontaneously attribute mental states to members of their own social group than to members of an out-group. We asked 5- and 6-year-old children to describe the actions of interacting geometric shapes and manipulated whether the children believed these shapes represented their own group or another group. Children of both ages spontaneously used mental-state words more often in their description of in-group members compared with out-group members. Furthermore, 6-year-olds produced a greater diversity of mental-state terms when talking about their own social group. These effects held across two different social categories (based on gender and geographic location). This research has important implications for understanding a broad range of social phenomena, including dehumanization, intergroup bias, and theory of mind.

Macrostructure, microstructure, and mental state terms in the narratives of English–Hebrew bilingual preschool children with and without specific language impairment

ABSTRACTChildren's bilingual status is important because the interest here is in narrative performance in both languages of bilingual children, in particular the within-subject, cross language comparisons. As Paradis (2010) has argued, there are some structures where performance differences will point to a temporary lack of opportunity for mastery, whereas other structures will be markers of underlying difficulties. We expect the discriminators to be language specific, depending on attested vulnerabilities for each of the languages involved. Narratives were examined for macrostructure (goals, attempts, and outcomes), microstructure (e.g., length, lexis, and morphosyntax), and mental state terms (MSTs). Thirty-one preschool children (TLD = 19, SLI = 12) retold stories accompanied by six pictures that were matched across content (Baby Birds/Baby Goats) and to the extent possible across languages (first language/second language) for macrostructure, microstructure, and MSTs in the framework of the Working Group on Narrative and Discourse Abilities in COST Action 0804 Language Impairment in a Multilingual Society: Linguistic Patterns and the Road to Assessment. The macrostructure results confirmed previous findings showing similar performance in both languages for children with TLD and those diagnosed with SLI. Consistent with previous findings on narrative abilities among bilingual children, microstructure analysis of verbal productivity, length of communication units, and lexical diversity distinguished children with TLD from those with SLI. An analysis of MSTs yielded more MSTs in children's second language, in particular more mental verbs. The most prevalent MSTs used in all narratives were early acquired perceptual and motivational verbs (“see” and “want”). Overall, distinctions between narratives of children with TLD and SLI were found primarily for microstructure features, where error analysis was particularly important in uncovering possible markers, especially in second languages.