A longitudinal investigation of the relationship between maternal mind‐mindedness and theory of mind

Data are presented from a longitudinal investigation examining the relationship between maternal mind‐mindedness (MM) in infancy and socio‐cognitive development in childhood. We revisited children (n = 18) who had taken part in a longitudinal study as infants. MM had been assessed at 10, 12, 16, and 20 months of age. We followed up these children at 5–6 years of age to test their higher order theory of mind (ToM) (using the strange stories task). The convergent validity, temporal stability, and predictive validity of the construct of MM were examined in a longitudinal data set. The five measures of MM were not significantly correlated. Mother's production of appropriate mind‐related comments (but no other measures) showed evidence of temporal stability throughout infancy. Thus, MM (as measured by appropriate mind‐related comments) was confirmed as a stable construct. Children's ToM at 5–6 years of age was significantly predicted by their mother's MM up to 4 years earlier, with MM accounting for 40% of the variance of the strange stories task scores. These findings identify a relationship between MM across a protracted period of infancy and socio‐cognitive development at 5–6 years of age.     

Multilingual assessment of early child development: Analyses from repeated observations of children in Kenya

In many low‐ and middle‐income countries, young children learn a mother tongue or indigenous language at home before entering the formal education system where they will need to understand and speak a country's official language(s). Thus, assessments of children before school age, conducted in a nation's official language, may not fully reflect a child's development, underscoring the importance of test translation and adaptation. To examine differences in vocabulary development by language of assessment, we adapted and validated instruments to measure developmental outcomes, including expressive and receptive vocabulary. We assessed 505 2‐to‐6‐year‐old children in rural communities in Western Kenya with comparable vocabulary tests in three languages: Luo (the local language or mother tongue), Swahili, and English (official languages) at two time points, 5–6 weeks apart, between September 2015 and October 2016. Younger children responded to the expressive vocabulary measure exclusively in Luo (44%–59% of 2‐to‐4‐year‐olds) much more frequently than did older children (20%–21% of 5‐to‐6‐year‐olds). Baseline receptive vocabulary scores in Luo (β = 0.26, SE = 0.05, p < 0.001) and Swahili (β = 0.10, SE = 0.05, p = 0.032) were strongly associated with receptive vocabulary in English at follow‐up, even after controlling for English vocabulary at baseline. Parental Luo literacy at baseline (β = 0.11, SE = 0.05, p = 0.045) was associated with child English vocabulary at follow‐up, while parental English literacy at baseline was not. Our findings suggest that multilingual testing is essential to understanding the developmental environment and cognitive growth of multilingual children.     

Relation of perinatal risk and early parenting to executive control at the transition to school

Executive control (EC) develops rapidly during the preschool years and is central to academic achievement and functional outcome. Although children with perinatal adversity are at known risk for EC impairments, little is known about the underlying nature of these impairments or the mechanisms that contribute to their development over time. Drawing on a cohort of 110 high‐risk children born very preterm (VPT; < 33 weeks / < 1500 g) and 113 healthy full‐term children, this study examined the implications of perinatal adversity and early parenting for children's EC as they transitioned to formal schooling. Parent supportive presence, intrusiveness, and parent–child synchrony were observed during a series of problem‐solving tasks at ages 2 and 4 years. At age 6, children completed a comprehensive battery of EC tasks. Academic outcomes were assessed at age 9. The VPT group showed global EC impairments at age 6, although the unitary factor that best characterized the structure of EC was the same in both groups. High‐risk dyads were characterized by more intrusive and less synchronous parent–child interactions in early childhood, which in turn predicted poorer child EC at age 6. EC partially mediated the relation of risk status to poorer academic achievement at age 9. Findings demonstrate the cumulative effects of perinatal adversity on children's EC in the crucial transition to schooling. They also highlight the importance of the parent–child relationship as a target for intervention efforts to help mitigate these effects.     

Cumulative risk disparities in children's neurocognitive functioning: a developmental cascade model

The current longitudinal study examined the role of cumulative social risk on children's theory of mind (ToM) and executive functioning (EF) across early development. Further, we also tested a cascade model of development in which children's social cognition at 18 months was hypothesized to predict ToM and EF at age 4.5 through intermediary language skills at age 3. We then examined whether this developmental mechanism varied as a function of social risk status. Participants were 501 children recruited when they were newborns, at which point eight psychosocial risk factors were assessed and combined into a metric of cumulative social disadvantage. Families were followed up at 18 months, at which point four social‐cognitive skills were assessed using developmentally sensitive tasks: joint attention, empathy, cooperation, and self‐recognition. Language was measured at age 3 using a standardized measure of receptive vocabulary. At age 3 and 4.5, EF and ToM were measured using previously validated tasks. Results showed that there were notable cumulative risk disparities in overall neurocognitive skill development, and these effects became more differentiated over time. Support was also found for a developmental mechanism wherein the effect of social cognition at 18 months on ToM and EF in the preschool period operated specifically through children's receptive language ability at age 3. This pathway functioned similarly for children with both low‐ and high‐risk backgrounds. These results extend previous findings by documenting the role of cumulative social disadvantage on children's neurocognition and the pathways that link key neurocognitive abilities across early development.     

The interplay among temperament,neuropsychological abilities,and global functioning in young hyperactive/inattentive children

Cognition and emotion have been shown to interact and influence psychological functioning. However, to date these interactions have only been examined cross‐sectionally among inattentive and/or hyperactive/impulsive children. This study investigated the moderating effects of neuropsychological functioning at age 3–4 years on the relation between negative emotionality at age 3–4 years and global functioning 1 year later, at age 4–5 years. Hyperactive/inattentive (H/I; n = 114) preschoolers entered the study (BL: baseline) and were seen again 1 year later (F1). Children's BL scores on a neuropsychological test (NEPSY) and their temperament as rated by parents (Child Behavior Questionnaire) and teachers (Temperament Assessment Battery for Children‐Revised) were obtained, as were clinicians’ ratings of their global functioning (Children's Global Assessment Scale) at F1. Hierarchical linear regression analyses revealed that BL temperament variables accounted for significant variance in F1 Global Functioning. Significant interactions indicated that higher Verbal Executive abilities were associated with better child functioning when parent‐rated Effortful Control was high, but not when Effortful Control was low. Additionally, high levels of Nonverbal Executive skills were associated with higher child global functioning when both parent‐ and teacher‐rated negative affect was low, but not when negative affect was high.     

Effects of verbal ability and fluid intelligence on children's emotion understanding

This study investigated the role of verbal ability and fluid intelligence on children's emotion understanding, testing the hypothesis that fluid intelligence predicts the development of emotion comprehension over and above age and verbal ability. One hundred and two children (48 girls) aged 3.6–6 years completed the Test of Emotion Comprehension (TEC) that comprised external and mental components, the Coloured Progressive Matrices and the Test for Reception of Grammar. Regression analysis showed that fluid intelligence was not equally related to the external and mental components of the TEC (Pons & Harris, 2000). Specifically, the results indicated that the external component was related to age and verbal ability only, whereas recognition of mental emotional patterns required abstract reasoning skills more than age and verbal ability. It is concluded that the development of fluid intelligence has a significant role in the development of mental component of emotion comprehension.     

Developmental trends in auditory processing can provide early predictions of language acquisition in young infants

Auditory processing capabilities at the subcortical level have been hypothesized to impact an individual's development of both language and reading abilities. The present study examined whether auditory processing capabilities relate to language development in healthy 9‐month‐old infants. Participants were 71 infants (31 boys and 40 girls) with both Auditory Brainstem Response (ABR) and language assessments. At 6 weeks and/or 9 months of age, the infants underwent ABR testing using both a standard hearing screening protocol with 30 dB clicks and a second protocol using click pairs separated by 8, 16, and 64‐ms intervals presented at 80 dB. We evaluated the effects of interval duration on ABR latency and amplitude elicited by the second click. At 9 months, language development was assessed via parent report on the Chinese Communicative Development Inventory ‐ Putonghua version (CCDI‐P). Wave V latency z‐scores of the 64‐ms condition at 6 weeks showed strong direct relationships with Wave V latency in the same condition at 9 months. More importantly, shorter Wave V latencies at 9 months showed strong relationships with the CCDI‐P composite consisting of phrases understood, gestures, and words produced. Likewise, infants who had greater decreases in Wave V latencies from 6 weeks to 9 months had higher CCDI‐P composite scores. Females had higher language development scores and shorter Wave V latencies at both ages than males. Interestingly, when the ABR Wave V latencies at both ages were taken into account, the direct effects of gender on language disappeared. In conclusion, these results support the importance of low‐level auditory processing capabilities for early language acquisition in a population of typically developing young infants. Moreover, the auditory brainstem response in this paradigm shows promise as an electrophysiological marker to predict individual differences in language development in young children.     

Idiom Comprehension in Mandarin-Speaking Children

This study examines the effect of familiarity, context, and linguistic convention on idiom comprehension in Mandarin speaking children. Two experiments (a comprehension task followed by a comprehension task coupled with a metapragmatic task) were administered to test participants in three age groups (6 and 9-year-olds, and an adult control group). Laval (Journal of Pragmatics 35(2):723–739, 2003) showed that familiarity had an effect on idiom comprehension for French 9-year-olds. However, our finding showed that familiarity was important for 6-year-old Chinese children when a context was not given. Abkarian et al. (Journal of Speech and Hearing Research 35:580–587, 1992) claimed that context has little or no effect on comprehension for children under 6. Our results show that context has an effect on 6-year-old children’s understanding of idioms in a different way. Overall, our major research findings are: (1) Familiarity first appeared in responses at age 6. (2) Context played an important role in idiom comprehension and had different effects on different age groups. (3) Linguistic convention starts from age 6 on, and a significant effect took place at the age of 9. (4) Metapragmatic knowledge showed at the age of 6 and could surface even younger. As context and linguistic convention have a substantial effect on the comprehension of idioms, it is necessary to take them into account to explain language functioning and communicative situations.     

Involvement of Executive Functions in Children's Metamemory

This experiment examined how knowledge of memory strategies and of memory functioning improves during childhood and what variables are involved in this development. Three main aspects of metamemory were assessed based on the performance of a group of 100 children (aged 4, 6, 9 and 11 years) on a battery of executive tasks. At the same time, the influence of variables such as intelligence, vocabulary and parental education level was also investigated. Results of mediation analyses reveal that the relation between children's age and internal strategy knowledge was partially mediated by working memory skills but that executive functions did not mediate the impact of chronological age on children's knowledge of external strategies or of memory functioning. Additionally, verbal fluency predicted internal and external strategy knowledge. Implications for general learning theories in childhood are discussed.Copyright © 2015 John Wiley & Sons, Ltd.     

Parents’ early book reading to children: Relation to children's later language and literacy outcomes controlling for other parent language input

It is widely believed that reading to preschool children promotes their language and literacy skills. Yet, whether early parent–child book reading is an index of generally rich linguistic input or a unique predictor of later outcomes remains unclear. To address this question, we asked whether naturally occurring parent–child book reading interactions between 1 and 2.5 years‐of‐age predict elementary school language and literacy outcomes, controlling for the quantity of other talk parents provide their children, family socioeconomic status, and children's own early language skill. We find that the quantity of parent–child book reading interactions predicts children's later receptive vocabulary, reading comprehension, and internal motivation to read (but not decoding, external motivation to read, or math skill), controlling for these other factors. Importantly, we also find that parent language that occurs during book reading interactions is more sophisticated than parent language outside book reading interactions in terms of vocabulary diversity and syntactic complexity.     

How do use and comprehension of mental-state language relate to theory of mind in middle childhood?

This study investigates the relationship between mental-state language and theory of mind in primary school children. The participants were 110 primary school students (mean age = 9 years and 7 months; SD = 12.7 months). They were evenly divided by gender and belonged to two age groups (8- and 10-year-olds). Linguistic, metacognitive and cognitive measures were used to assess the following competencies: verbal ability, use of mental-state terms, understanding of metacognitive language, understanding of second-order false beliefs, and emotion comprehension. Correlations between children’ use of mental-state language and their performance on theory-of-mind tasks were moderate, whereas correlations between children's comprehension of such language and ToM abilities were high. In addition, regression analyses showed that comprehension of metacognitive language was the variable which best explained children's performance on both false belief tasks and an emotion comprehension test when verbal ability and age were controlled for.     

Attention and executive functioning in infancy: Links to childhood executive function and reading achievement

This study provides the first analyses connecting individual differences in infant attention to reading achievement through the development of executive functioning (EF) in infancy and early childhood. Five‐month‐old infants observed a video, and peak look duration and shift rate were video coded and assessed. At 10 months, as well as 3, 4, and 6 years, children completed age‐appropriate EF tasks (A‐not‐B task, hand game, forward digit span, backwards digit span, and number Stroop). Children also completed a standardized reading assessment and a measure of verbal intelligence (IQ) at age 6. Path analyses on 157 participants showed that infant attention had a direct statistical predictive effect on EF at 10 months, with EF showing a continuous pattern of development from 10 months to 6 years. EF and verbal IQ at 6 years had a direct effect on reading achievement. Furthermore, EF at all time points mediated the relation between 5‐month attention and reading achievement. These findings may inform reading interventions by suggesting earlier intervention time points and specific cognitive processes (i.e. 5‐month attention).     

Bilingualism alters children's frontal lobe functioning for attentional control

Bilingualism is a typical linguistic experience, yet relatively little is known about its impact on children's cognitive and brain development. Theories of bilingualism suggest that early dual‐language acquisition can improve children's cognitive abilities, specifically those relying on frontal lobe functioning. While behavioral findings present much conflicting evidence, little is known about its effects on children's frontal lobe development. Using functional near‐infrared spectroscopy (fNIRS), the findings suggest that Spanish–English bilingual children (n = 13, ages 7–13) had greater activation in left prefrontal cortex during a non‐verbal attentional control task relative to age‐matched English monolinguals. In contrast, monolinguals (n = 14) showed greater right prefrontal activation than bilinguals. The present findings suggest that early bilingualism yields significant changes to the functional organization of children's prefrontal cortex for attentional control and carry implications for understanding how early life experiences impact cognition and brain development.     

Developmental differences in the neural correlates supporting semantics and syntax during sentence processing

School‐aged and adolescent children continue to demonstrate improvements in how they integrate and comprehend real‐time, auditory language over this developmental time period, which can have important implications for academic and social success. To better understand developmental changes in the neural processes engaged during language comprehension in this age group, we use electroencephalography to investigate how 8–9 year old, 12–13 year olds, and adults process semantics and syntax in naturally paced, auditory sentences. Participants listened to semantically and syntactically correct and incorrect sentences and were asked to complete an acceptability judgment task. When processing a semantic error, developmental differences were observed in theta, but not the N400, suggesting that the N400 may be too gross a measure to identify more subtle aspects of semantic development that occur in the school years. For the syntactic task, errors resulted in a larger P600 and greater beta decrease than correct sentences, but the amplitude and location of the P600 and amplitude of beta decreases differed as a function of age, suggesting specialization of syntactic skills is ongoing through adolescence. The current findings shed new light on the development of the neural oscillations supporting language comprehension and suggest that the neural substrates underlying semantic processing reach adult‐like levels at a younger age than those underlying syntactic processing.     

Cultural influences on children's understanding of the human body and the concept of life

This study aimed to identify the age by which children begin to demonstrate a biological understanding of the human body and the idea that the purpose of body functioning is to maintain life. The study also explored the influence of education, culturally specific experiences and religion on knowledge acquisition in this domain. Children aged between 4 and 7 years from three different cultural backgrounds (White British, British Muslim, and Pakistani Muslim) were interviewed about the human body and its functioning. At least half of the 4‐ to 5‐year‐olds in each cultural group, and almost all 6‐ to 7‐year‐olds, referred to the maintenance of life when explaining organs' functions and so were classified as ‘life theorizers’. Pakistani Muslim children gave fewer biological responses to questions about organs' functions and the purpose of eating and breathing, but referred to life more than their British counterparts. Irrespective of cultural group, older children understood organ location and function better than younger children. These findings support Jaakkola and Slaughter's (2002, Br. J. Dev. Psychol., 20, 325) view that children's understanding of the body as a ‘life machine’ emerges around the ages of 4–5 years. They also suggest that, despite many similarities in children's ideas cross‐culturally, different educational input and culturally specific experiences influence aspects of their biological understanding.     

Evolution of the wealth gap in child development and mediating pathways: Evidence from a longitudinal study in Bogota,Colombia

Large gaps in cognition and language on the Bayley‐III between the top and bottom household wealth quartiles in 1,330 children aged 6–42 months in a representative sample of low‐ and middle‐income families in Bogota were previously shown. Maternal education and the home environment mediated these wealth effects, whereas height‐for‐age mediated a small amount of the language deficit only. At ages 6–8 years, we relocated 72% of the children and assessed their IQ on the WISC‐V, school achievement, and behavior to investigate the evolution of the wealth gaps and potential mediators. The wealth gap in IQ at 6–8 years was significantly larger than that in a factor combining Bayley‐III language and cognition at 6–42 months; whereas the gap in achievement was larger but not significantly. Moreover, in cross‐sectional analysis, the IQ gap increased from 6 to 8 years reaching over 1 SD. In contrast, the gap in behavior was not significant in either childhood stage. Parental education and early home environment remained major mediators of the wealth gap in IQ and achievement at 6–8 years; later home environment and attending private education also had an effect; and early height‐for‐age was no longer significant. The home environment partly mediated the effect of parental education on wealth. All mediators combined explained most of the variance in the wealth gap; the remaining gaps being not significant. Results highlight the importance of the early home environment and suggest that interventions focusing on that should have long‐term benefits. Also, continued intervention through to 8 years may be desirable. A video abstract of this article can be viewed at https://youtu.be/_U53iXNww3I .     

Language development of pre‐school children born to teenage mothers

An Erratum has been published for this article in Infant and Child Development 10(4) 2001, 241. This paper compares the language development of pre‐school children born to teenage (n=22) and comparison mothers (n=20) and examines the extent to which differences in language development can be explained by social background, child and parenting factors. Mothers and children were assessed at home using a range of measures, including a structured interview, the language scales of the Child Development Inventory, the HOME Inventory, and videotaped mother‐child interaction. Results showed that children of teenage mothers perform significantly poorer than children of comparison mothers on measures of expressive language and language comprehension. Subsequent analyses showed that these differences are largely explained by differences in the parenting behaviour of teenage and comparison mothers. Specifically, maternal verbal stimulation and intrusiveness accounted for the relationship between teenage motherhood and children's poorer language comprehension, while maternal intrusiveness and involvement with the child account for the relationship between teenage motherhood and children's poorer expressive language development. These findings highlight the importance of early mother–child interaction for children's language development. Copyright © 2001 John Wiley & Sons, Ltd.     

Real‐world word learning: Exploring children's developing semantic representations of a science term

Assessments of lexical acquisition are often limited to preschool children on forced‐choice comprehension measures. This study assessed the nature of the understandings 30 school‐age children (mean age = 6;7) acquired about the science term eclipse following a naturalistic exposure to a solar eclipse. The knowledge children acquired about eclipses and a control term comet was assessed at three points in time (baseline‐test, 2‐week post‐test and 5‐month post‐test) using a range of assessment tasks (multiple‐choice comprehension, picture‐naming, drawing and a model solar system manipulation task). Children's knowledge at the baseline‐test and 2‐week post‐test was compared with that of 15 adult controls. The analysis focused on the range of knowledge children acquired about eclipses and the relationships between aspects of knowledge they acquired. We found that children acquired extensive knowledge about eclipses, but not comets. At the 2‐week post‐test, the majority of children were able to produce the term eclipse and provided evidence of accurate comprehension and wider conceptual knowledge about solar eclipses, which was retained at the 5‐month post‐test. Further, children's ability to produce the term was related to their acquisition of ‘rich’ semantic and conceptual knowledge.     

Exploring the Relations between Cattell–Horn–Carroll (CHC) Cognitive Abilities and Mathematics Achievement

As standardized measures of cognitive abilities and academic achievement continue to evolve, so do the relations between the constructs represented in these measures. A large, nationally representative sample of school‐aged children and youth between 6 and 19 years of age (N = 4,194) was used to systematically evaluate the relations between cognitive abilities and components of academic achievement in mathematics. The cognitive abilities of interest were those identified from the Cattell–Horn–Carroll model of intelligence. Specific areas of mathematics achievement included math calculation skills and math problem solving. Results suggest that fluid reasoning (Gf), comprehension‐knowledge (Gc), and processing speed (Gs) have the strongest and most consistent relations with mathematics achievement throughout the school years.Copyright © 2017 John Wiley & Sons, Ltd.     

Emotion regulation strategies in preschool children

This study investigated the development of emotion regulation strategies as reflected in the narratives of children between the ages of 3 and 6 years. An experimental procedure based on story completion tasks was devised to elicit the emotion‐related narratives of 69 preschool children. Coding of the narratives led to the observation of different emotion regulation strategies: Behavioural strategies, social support, and cognitive reappraisal. Several significant gender and age differences were identified in the use of these strategies. In addition, verbal skills, non‐verbal intelligence, and emotion comprehension were found to be associated with use of the observed emotion regulation strategies, although only at specific ages.