Everyday language input and production in 1,001 children from six continents.

Language is a universal human ability, acquired readily by young children, who otherwise struggle with many basics of survival. And yet, language ability is variable across individuals. Naturalistic and experimental observations suggest that children's linguistic skills vary with factors like socioeconomic status and children's gender. But which factors really influence children's day-to-day language use? Here, we leverage speech technology in a big-data approach to report on a unique cross-cultural and diverse data set: >2,500 d-long, child-centered audio-recordings of 1,001 2- to 48-mo-olds from 12 countries spanning six continents across urban, farmer-forager, and subsistence-farming contexts. As expected, age and language-relevant clinical risks and diagnoses predicted how much speech (and speech-like vocalization) children produced. Critically, so too did adult talk in children's environments: Children who heard more talk from adults produced more speech. In contrast to previous conclusions based on more limited sampling methods and a different set of language proxies, socioeconomic status (operationalized as maternal education) was not significantly associated with children's productions over the first 4 y of life, and neither were gender or multilingualism. These findings from large-scale naturalistic data advance our understanding of which factors are robust predictors of variability in the speech behaviors of young learners in a wide range of everyday contexts.

The role of translation equivalents in bilingual word learning.

Bilingual environments present an important context for word learning. One feature of bilingual environments is the existence of translation equivalents (TEs)-words in different languages that share similar meanings. Documenting TE learning over development may give us insight into the mechanisms underlying word learning in young bilingual children. Prior studies of TE learning have often been confounded by the fact that increases in overall vocabulary size with age lead to greater opportunities for learning TEs. To address this confound, we employed an item-level analysis, which controls for the age trajectory of each item independently. We used Communicative Development Inventory data from four bilingual datasets (two English-Spanish and two English-French; total N = 419) for modeling. Results indicated that knowing a word's TE increased the likelihood of knowing that word for younger children and for TEs that are more similar phonologically. These effects were consistent across datasets, but varied across lexical categories. Thus, TEs may allow bilingual children to bootstrap their early word learning in one language using their knowledge of the other language. RESEARCH HIGHLIGHTS: Bilingual children must learn words that share a common meaning across both languages, that is, translation equivalents, like dog in English and perro in Spanish. Item-level models explored how translation equivalents affect word learning, in addition to child-level (e.g., exposure) and item-level (e.g., phonological similarity) factors. Knowing a word increased the probability of knowing its corresponding translation equivalent, particularly for younger children and for more phonologically-similar translation equivalents. These findings suggest that young bilingual children use their word knowledge in one language to bootstrap their learning of words in the other language.

The impact of a community-based music program during infancy on the quality of parent-child language interactions.

The early language environment, especially high-quality, contingent parent-child language interactions, is crucial for a child's language development and later academic success. In this secondary analysis study, 89 parent-child dyads were randomly assigned to either the Music Together® (music) or play date (control) classes. Children were 9- to 15-month old at baseline, primarily white (86.7%) and female (52%). Measures of conversational turns (CTs) and parental verbal quality were coded from parent-child free play episodes at baseline, mid-intervention (month 6), and post-intervention (month 12). Results show that participants in the music group had a significantly greater increase in CT measures and quality of parent verbalization post-intervention. Music enrichment programs may be a strategy to enhance parent-child language interactions during early childhood.

Configurations of mother-child and father-child attachment relationships as predictors of child language competence: An individual participant data meta-analysis.

An individual participant data meta-analysis was conducted to test pre-registered hypotheses about how the configuration of attachment relationships to mothers and fathers predicts children's language competence. Data from seven studies (published between 1985 and 2014) including 719 children (Mage : 19.84 months; 51% female; 87% White) were included in the linear mixed effects analyses. Mean language competence scores exceeded the population average across children with different attachment configurations. Children with two secure attachment relationships had higher language competence scores compared to those with one or no secure attachment relationships (d = .26). Children with two organized attachment relationships had higher language competence scores compared to those with one organized attachment relationship (d = .23), and this difference was observed in older versus younger children in exploratory analyses. Mother-child and father-child attachment quality did not differentially predict language competence, supporting the comparable importance of attachment to both parents in predicting developmental outcomes.

An exploratory study on dialect density estimation for children and adult's African American Englisha).

This paper evaluates an innovative framework for spoken dialect density prediction on children's and adults' African American English. A speaker's dialect density is defined as the frequency with which dialect-specific language characteristics occur in their speech. Rather than treating the presence or absence of a target dialect in a user's speech as a binary decision, instead, a classifier is trained to predict the level of dialect density to provide a higher degree of specificity in downstream tasks. For this, self-supervised learning representations from HuBERT, handcrafted grammar-based features extracted from ASR transcripts, prosodic features, and other feature sets are experimented with as the input to an XGBoost classifier. Then, the classifier is trained to assign dialect density labels to short recorded utterances. High dialect density level classification accuracy is achieved for child and adult speech and demonstrated robust performance across age and regional varieties of dialect. Additionally, this work is used as a basis for analyzing which acoustic and grammatical cues affect machine perception of dialect.

Low language capacity in childhood: A systematic review of prevalence estimates.

BACKGROUND AND AIMS: Epidemiological studies have provided invaluable insight into the origin and impact of low language skills in childhood and adolescence. However, changing terminology and diagnostic guidelines have contributed to variable estimations of the prevalence of developmental language difficulties. The aim of this review was to profile the extent and variability of low language prevalence estimates through a systematic review of epidemiological literature. METHODS: A systematic review of the empirical research (August 2022) was undertaken to identify studies that aimed to estimate the prevalence of low language skills in children (<18 years). A total of 19 studies published between 1980-2022 met inclusion criteria for review. RESULTS: Studies reported prevalence estimates of low language skills in children between 1 and 16 years. Estimated rates varied from 0.4% to 25.2%. More stable estimations were observed in studies of children aged 5 years and older and those that applied updated diagnostic criteria to performance on standardised assessments of receptive and expressive language. CONCLUSIONS AND IMPLICATIONS: The estimated prevalence of low language skills in childhood varies considerably in the literature. Application of updated diagnostic criteria, including the assessment of functional impact, is critical to inform advocacy efforts and govern social, health and educational policies. WHAT THIS PAPER ADDS: What is already known on the subject Epidemiological research has informed our understanding of the origin and impact of low language capacity in childhood. Childhood language disorder is met with a rich history of evolving terminology and diagnostic guidelines to identify children with low language skills. Inconsistent definitions of and methods to identify low language in children have resulted in variable prevalence estimates in population-based studies. Variability in prevalence estimates impacts advocacy efforts to inform social, health and educational policy for child language disorder. What this study adds A total of 19 studies published at the time of this review aimed to provide estimates of the proportion of children who experience low language skills. Prevalence estimates varied between 0.4% and 25.2%, with more stable estimates reported in studies of older school-age children and those which utilised standardised assessments of both expressive and receptive language. Few studies utilised assessments of functional impact of language difficulties, which is misaligned with updated diagnostic criteria for child language disorder. What are the clinical implications of this work? This review reports substantial variability in estimates of the proportion of children and adolescents who live with low language skills. This variability underscores the importance of applying updated diagnostic criteria to identify the prevalence low language in childhood. Efforts to estimate the prevalence of low language must include measures of functional impact of low language skills. This aligns with clinical recommendations, which call for routine assessment of functional outcomes. To this end, we require a unified understanding of the term 'functional impact' in the context of low language, including the development and evaluation of measures that assess impact across emotional, social and academic domains.

Making oral comprehension interventions TIDieR: A narrative synthesis of interventions improving comprehension in children from 1 to 5 years with language difficulties.

BACKGROUND: Oral comprehension difficulties are prevalent in preschool children with language difficulties and are frequently the target of speech and language therapy (SLT) intervention. To support the implementation of research to practice, there is a need to identify effective interventions for this population and to describe their components. To date, reviews of oral comprehension intervention have not used inclusion criteria aligned with common clinical practice, particularly in the United Kingdom. No studies have previously used the Template for Intervention Description and Replication (TIDieR) checklist to describe developmental SLT interventions. AIMS: To identify intervention studies effective for oral comprehension in preschool children with language difficulties, using the UK definition of 'preschool' as children under 5 years; to describe the components of these interventions. METHOD: This followed two phases: (1) an International Prospective Register of Systematic Reviews registered search, which identified 20 systematic reviews; and (2) an exploration of individual studies within these reviews. Seventeen individual studies described effective intervention for children from 1 to 5 years old with language difficulties. Data were extracted from each study against headings from the TIDieR checklist. Findings were analysed and reported using narrative synthesis. MAIN CONTRIBUTION: A wide variety of rationales, techniques, procedures, settings and intensities were associated with effective intervention. The TIDieR checklist highlighted components that were unreported or under-described. CONCLUSIONS: Studies show that intervention can be effective for improving oral comprehension in preschool children with language difficulties. Analysis of intervention components has relevance to clinical practice and research, and highlights the importance of naturally occurring interactions, cross-over between oral comprehension and expressive language and the variety in delivery models and dosage. WHAT THIS PAPER ADDS: What is already known on this subject There is a reported lack of research into interventions developing oral comprehension in children with language difficulties. Intervention checklists such as the Template for Intervention Description and Replication are valuable tools for understanding interventions and supporting the application of research to practice, but none have been used to describe interventions for children with language difficulties. What this study adds There is evidence that intervention developing oral comprehension in preschool children (using UK definition, those under 5 years) with language difficulties can be effective. Analysing intervention components reveals key points for consideration by clinicians. What are the clinical implications of this work? Intervention components identified by this study support the implementation of research to practice by highlighting particular areas for consideration by clinicians. For researchers, gaps in reporting demonstrate the need to describe all aspects of intervention to support replication and implementation.

Speed of processing in Developmental Language Disorder (DLD): The case of real-time grammatical processing.

BACKGROUND: Developmental Language Disorder (DLD) impacts various aspects of children's language abilities, including the processing of inflectional morphology. Prior research suggests that children with DLD exhibit deficits in processing speed and sensitivity to grammatical inflections, yet the relationship between these deficits remains unclear. AIMS: This study aimed to investigate the relationship between processing speed and sensitivity to inflectional morphology in children with DLD, focusing on their real-time processing abilities in response to regular past tense, third person singular, and regular plural inflections at different rates of sentence articulation. METHOD: Eighteen children with DLD and 18 age-matched controls underwent word monitoring tasks that assessed sensitivity to grammaticality of inflections in sentences presented at normal and slow rates of articulation. RESULTS: At a normal rate of articulation, children with DLD demonstrated slower response times and reduced sensitivity to grammaticality across all inflections compared to controls. When the articulation rate was slowed, children with DLD showed improved sensitivity, particularly to regular plural and third person singular inflections, although deficits in processing the regular past tense persisted. CONCLUSIONS: The findings suggest a significant relationship between processing speed and inflectional morphology sensitivity in children with DLD. Slower articulation rates improved grammatical sensitivity for certain inflections, highlighting the potential of tailored interventions that consider processing speed limitations. Persistent difficulties with the regular past tense inflection indicate the need for targeted support for children with DLD in this area. WHAT THIS PAPER ADDS: What is already known on this subject Children with Developmental Language Disorder (DLD) have a wide range of language difficulties, but deficits in inflectional morphology are regarded as a 'hallmark' of the disorder. Children with DLD are also very likely to show deficits in speed of processing, although it is not known if a 'slowness to process' can causally explain the language difficulties these children experience. What this study adds to existing knowledge When grammatical sensitivity was measured using an online real-time task, children with DLD showed widespread inflectional deficits when sentences were spoken at a normal conversational rate. When sentence articulation rate was slowed down, children with DLD were faster, more accurate and more sensitive to the grammaticality of constructions. However, deficits in the regular past tense remained persistent, even in this slow-rate condition. What are the clinical implications of this work? This study has implications for clinical and educational practices that work with children with DLD to improve their language skills. The findings of this study show that when children with DLD are given more time to process incoming information, their grammatical skills significantly improve. This study also shows that deficits in the regular past tense are persistent, and children are likely need extensive and intensive support with this particular grammatical feature.

Effect of online parent training in promoting language development of children with language delay in Hubei province, China.

BACKGROUND: Training parents to implement language and communication intervention strategies is an effective approach to promote language development for children with language delay. AIMS: This study introduces an online parent training program conducted in Hubei province, China, which was designed to help parents of language-delayed children with a diagnosis of autism spectrum disorder (ASD), developmental language disorder (DLD) or global developmental delay (GDD) apply language intervention strategies into daily interactions and promote their children's language development at home. METHODS & PROCEDURES: The Bethel Hearing and Speaking Training Center Family Training for Early Communication & Language Development (Bethel Family Training Program, BFT) (Bethel HSTC, 2020) was designed to improve the language and communication skills for children with language delay in a naturalistic way. The caregivers (including parents, grandparents and other main caregivers) participated in an 8-h online program, including lectures on milestones in child language development, common misunderstandings of child language development, and three basic family language intervention strategies ('Looking together, playing together, and talking together') incorporating active learning through video analysis and discussion. Tongji Hospital in Hubei then continued with 3 months of online home intervention monitoring to all the caregivers via weekly online Q&As led by BFT certified speech therapists' team. The Gesell Developmental Schedules (GDS) was carried out before the online parent training program and after the 3-month online home intervention monitoring. OUTCOMES & RESULTS: 146 families whose children aged 12-68 months with language delay participated in the online training program. The results of the GDS assessments conducted before and after the program showed that not only did the developmental quotient (DQ) of language improve, but so did the DQ of social behaviour and adaptive behaviour (p < 0.001). There is no between-group difference in the application of three strategies between the ASD group and the DLD or GDD group (p > 0.05). Furthermore, both caregivers' ability to apply 'looking together, playing together, talking together' strategies and the effective interaction time played important roles in improving the child's language abilities. CONCLUSION & IMPLICATIONS: The online parent training focusing on improving daily interaction with children through speech-language stimulation strategies promoted the development of language skills. It is an economic and practical approach for children with language delay who have limited access to local language intervention programs. WHAT THIS PAPER ADDS: What is already known on the subject Parent-implemented language intervention is an effective approach at improving children's language development. Telepractice is an appropriate model of service delivery for audiologists and speech-language therapists and may be the primary mode of service delivery or may supplement in-person services. What this paper adds to the existing knowledge This paper explores the effectiveness of an online parent training program and provides new evidence that online training on language support strategies (looking together, playing together, talking together) followed by home intervention monitoring works for Mandarin-speaking children and it is equally effective for children with ASD and non-ASD diagnosis. What are the potential or actual clinical implications of this work? Developmental behavioural paediatricians and speech-language therapists in countries and areas that lack sufficient training resource for every child will have the option to deliver parent training and home intervention monitoring online, which will save time and cost considerably while offering convenience.

Maternal input to 24-month-old children with sex chromosome trisomies.

BACKGROUND: Maternal input plays an important role in influencing linguistic development during the first years of life, and it is evident that mothers adapt their language according to their child's characteristics. Recently, it was demonstrated that maternal input addressed to children with sex chromosome trisomies (SCTs) at 8 months of age is prosodically and functionally different from that addressed to typically developing (TD) peers. AIMS: The study aimed at analysing maternal input at 24 months when the presence of a language delay could be more evident than during the preverbal stage. We were interested in examining if maternal input was influenced by a diagnosis of SCT (by comparing children with SCT and TD children) or by children's linguistic level (by comparing children with weak lexical ability versus children with typical lexical ability regardless of the presence of genetic diagnosis). METHODS AND PROCEDURES: Forty-four mother-child dyads in which the children had an SCT and 20 mother-child dyads in which the children were TD participated in the study. Of these 64 dyads, 23 children (21 with SCTs and two TD children) formed the group of children with weak lexical ability (children with a vocabulary size lower than 50 words at 24 months). Maternal utterances were collected during one video-recorded play session and were then coded considering both the linguistic and functional features of the input. OUTCOMES AND RESULTS: The results showed that the input addressed to 24-month-old children with SCTs is as rich and complex as that addressed to TD peers. Moreover, no significant differences in the functions expressed by maternal input were found (all ps > 0.05). Comparing the children with weak lexical ability and the children with typical lexical ability in our sample, having a poor vocabulary at 24 months of age showed a significant influence on the maternal input features: the input addressed to children with weak lexical ability was characterised by a higher presence of attention getters (U = 217.00, p = 0.007) and a lower proportion of questions (U = 236.00, p = 0.017) than that of mothers of typically-talking children. CONCLUSIONS AND IMPLICATIONS: At 24 months of age, it seems that the presence of a language delay and not belonging to the clinical group of children with SCTs influences the functional characteristics of the maternal input. It is important to support the parents of children with SCTs during the communication process and later during their child's development, leading them to observe their children's manifested skills rather than looking for possible predicted difficulties. WHAT THIS PAPER ADDS: What is already known on the subject Studies in the literature demonstrated how mothers can generally adapt their input to their child's characteristics. To our knowledge, only two recent studies analysed the maternal input addressed to children with SCT at 8 months of age, highlighting significant differences. What this paper adds to existing knowledge The maternal input addressed to children with SCT at 24 months of age is not different from that addressed to TD children. At 24 months of age, the mothers adapt their input to the verbal competence shown by their child (weak lexical ability versus typically-talking), while belonging to the clinical group does not show an influence. What are the potential or actual clinical implications of this work? All the participants of the present study received prenatal diagnosis disclosure by an expert team of professionals, and they were all involved in a longitudinal study aimed at monitoring the children's development and supporting their parents. These results show that giving clear and complete information about possible development paths to parents of children with SCTs during diagnosis disclosure is crucial. Moreover, supporting the parents during the communication process and later during their child's development is fundamental, leading them to observe their children's manifested skills rather than looking for possible predicted difficulties.

A randomised controlled trial of the effectiveness of parent-based models of language intervention for 2- to 3-year-old children with speech, language and communication needs (SLCN) in areas of social disadvantage.

BACKGROUND: Early language delay is exacerbated by social disadvantage. Factors such as parents' low levels of literacy, confidence and self-perception can affect the capacity to act on advice received, critical to empowerment. Methods used to achieve successful health outcomes in socially disadvantaged clinical populations may need enhancing. AIMS: To compare the impact of standard parent-based intervention (PBI) to enhanced PBI for young children with speech, language and communication needs (SCLN) and their families living in more socially disadvantaged populations. METHODS AND PROCEDURES: A multicentre clustered blind randomised controlled trial was used to compare the effect of parent-based group interventions to improve early language development with children (mean age 27.5 months) from more socially disadvantaged populations with an expressive vocabulary of 40 or less single words. Intervention sessions were delivered by a speech and language therapist, over a 20-week period. Participants received one of two interventions: (1) Standard Care - indirect group PBI - (PBI) (2) Enhanced Care: indirect group enhanced PBI - (EPBI). Both standardised and non-standardised measures were used as outcomes. Parent engagement in the intervention was captured through analysis of attendance and the Parent Activation Measure - Speech & Language Therapy (PAM-SLT) (Insignia Health, 2014). The PAM measures a person's knowledge, skills and confidence to manage their own health and well-being (NHS England, 2018). In this study, activation referred to parents' knowledge, skills and confidence to manage their child's language development. OUTCOMES AND RESULTS: One hundred fifty-five participants were randomised at baseline. Children in both groups made significant improvements in the outcome on MacArthur-Bates Communicative Development Inventories Sentence Length, from pre-intervention to post-intervention and 6 months post-intervention (p < 0.05). Changes in vocabulary and expressive language skills were more equivocal, showing wide variation in confidence intervals for both groups. Where parents attended at least one intervention session almost all effect sizes were in favour of the EPBI intervention. Parents' activation levels significantly increased for both groups (EPBI p < 0.001, PBI p = 0.003), with a moderate effect size in favour of EPBI (Hedges' G 0.37, confidence interval -0.02 to 0.76), although wide variation was found. CONCLUSIONS AND IMPLICATIONS: This trial provides some evidence of facilitating the language development of children with SLCN from more socially disadvantaged areas through supporting caregivers. However, we found variation in outcomes; some children made excellent progress, whilst others did not. Further exploration of parent engagement and its relationship to child language outcomes will be valuable to understanding more about mechanisms of change in interventions that involve parents. WHAT THIS PAPER ADDS: What is already known on the subject Speech, language and communication needs (SLCN) have a knock-on effect on emotional well-being, school readiness, literacy and school attainment, putting children at increased risk of long-term consequences such as poor literacy, mental health problems and unemployment. In disadvantaged areas, the prevalence of language difficulties is higher than elsewhere. Factors such as parents' low levels of literacy, confidence and self-perception can affect the capacity to act on advice received, critical to empowerment. What this paper adds to existing knowledge Children with SLCN from more socially disadvantaged areas can make improvements in their language development through parent intervention, although wide individual variation was found. There was some evidence that children achieve better outcomes with EPBI, which employed an interagency collaborative approach. Parent's engagement (activation levels) increased significantly over time with intervention, with the increase twice as big for EPBI. What are the potential or actual clinical implications of this work? This trial provides some evidence that it is possible to facilitate the language development of children from more socially disadvantaged areas through supporting their caregivers. Further research would be useful to determine whether increases in parent engagement are related to adherence to intervention and change in child outcomes.

Comparing apples to manzanas and oranges to naranjas: A new measure of English-Spanish vocabulary for dual language learners.

The valid assessment of vocabulary development in dual-language-learning infants is critical to developmental science. We developed the Dual Language Learners English-Spanish (DLL-ES) Inventories to measure vocabularies of U.S. English-Spanish DLLs. The inventories provide translation equivalents for all Spanish and English items on Communicative Development Inventory (CDI) short forms; extended inventories based on CDI long forms; and Spanish language-variety options. Item-Response Theory analyses applied to Wordbank and Web-CDI data (n = 2603, 12-18 months; n = 6722, 16-36 months; half female; 1% Asian, 3% Black, 2% Hispanic, 30% White, 64% unknown) showed near-perfect associations between DLL-ES and CDI long-form scores. Interviews with 10 Hispanic mothers of 18- to 24-month-olds (2 White, 1 Black, 7 multi-racial; 6 female) provide a proof of concept for the value of the DLL-ES for assessing the vocabularies of DLLs.

Fostering retention of word learning: The number of training sessions children retrieve words positively relates to post-training retention.

During vocabulary instruction, it is important to teach words until their representations are robust enough to be retained. For adults, the number of training sessions a target item is successfully retrieved during training predicts the likelihood of post-training retention. To assess this relationship in children, we reanalyzed data from Gordon et al. (2021b, 2022). Four- to six-year-old children completed six training days with word form-object pairs and were tested one month later. Results indicate that the number of training sessions that a word form was retrieved was positively related to post-training retention. We discuss implications for vocabulary instruction and interventions.

Parentese in infancy predicts 5-year language complexity and conversational turns.

Parental input is considered a key predictor of language achievement during the first years of life, yet relatively few studies have assessed its effects on longer-term outcomes. We assess the effects of parental quantity of speech, use of parentese (the acoustically exaggerated, clear, and higher-pitched speech), and turn-taking in infancy, on child language at 5 years. Using a longitudinal dataset of daylong LENA recordings collected with the same group of English-speaking infants (N=44) at 6, 10, 14, 18, 24 months and then again at 5 years, we demonstrate that parents' consistent (defined as stable and high) use of parentese in infancy was a potent predictor of lexical diversity, mean length of utterance, and frequency of conversational turn-taking between children and adults at Kindergarten entry. Together, these findings highlight the potential importance of a high-quality language learning environment in infancy for success at the start of formal schooling.

Preschool children's discourse competence in different genres and how it relates to iconic gestures.

Based on the linguistic analysis of game explanations and retellings, the paper's goal is to investigate the relation of preschool children's situated discourse competence and iconic gestures in different communicative genres, focussing on reinforcing and supplementary speech-gesture-combinations. To this end, a method was developed to evaluate discourse competence as a context-sensitive and interactively embedded phenomenon. The so-called GLOBE-model was adapted to assess discourse competence in relation to interactive scaffolding. The findings show clear links between the children's competence and their parents' scaffolding. We suggest this to be evidence of a fine-tuned interactive support system. The results also indicate strong relations between higher discourse competence and increased frequency of iconic gestures. This applies in particular to reinforcing gestures. The results are interpreted as a confirmation that the speech-gesture system undergoes systematic changes during early childhood, and that gesturing becomes more iconic - and thus more communicative - when discourse competence is growing.

The role of imageability in noun and verb acquisition in children with Down syndrome and their peers with typical development.

Our main objective was to analyze the role of imageability in relation to the age of acquisition (AoA) of nouns and verbs in Spanish-speaking children with Down syndrome (DS) and their peers with typical development (TD). The AoA of nouns and verbs was determined using the MacArthur-Bates CDIs adapted to the profile of children with DS. The AoA was analyzed using a linear mixed-effect model, including factors of imageability, group, and word class, and controlling for word frequency and word length. This analysis showed that high imaginable and short words were acquired early. Children with DS acquired the words later than TD peers. An interaction between imageability and group indicated that the effect of imageability was greater in the DS group. We discuss this effect considering DS children's phonological memory difficulties. The overall results confirm the role that imageability and word length play in lexical acquisition, an effect that goes beyond word class.

An observational study of parental language during play and mealtime in toddlers at variable likelihood for autism.

Parental language input influences child language outcomes but may vary based on certain characteristics. This research examined how parental language differs during two contexts for toddlers at varying likelihood of autism based on their developmental skills. Parental language (quantity, quality, and pragmatic functions) was analyzed during dyadic play and mealtime interactions as a secondary data analysis of observational data from a study of toddlers at elevated and lower likelihood of autism. Child developmental skills and sensory processing were also assessed. Parents used more words per minute, directives, and verbs during play and more adjectives, descriptions, and questions during mealtime. Parental language differed based on child fine motor skills, receptive language, and levels of sensory hyporesponsiveness but not autism likelihood. Overall, this study found that parental language varies based on context and child developmental skills. Future research examining parental language should include pragmatic functions and context across developmental trajectories.

Translation and Adaptation of the English Story Retell Procedure to Portuguese: A Preliminary Study.

INTRODUCTION: The comprehension and production of connected language are essential for effective communication. However, few assessment and intervention programs requiring connected language have been made available in Brazilian Portuguese. One connected language sampling procedure, the Story Retell Procedure (SRP), has been widely studied in English and primarily for people with aphasia. The SRP employs 12 stories, whose individual plots are quite different and still equivalent in terms of verbal productivity measures. The first objective of this study was to present the translation and adaptation of the SRP stories into Portuguese and to determine whether the translations are similar to English stories. The second objective was to analyze a small group of healthy adults' responses to this assessment, thus observing whether the retellings of the SRP story forms in Portuguese would be similar to each other in the number of words, information units (IUs), and propositions - as demonstrated in English. METHODS: This preliminary study translated and adapted into Portuguese, the 12 original English SRP stories. Only small cultural adaptations were made, preserving the essential content of the stories. The stories were then presented to 14 healthy adults, and the participants' retellings from each story were compared to the other stories regarding the number of words, IUs, and propositions. RESULTS: Few differences were found in the retellings considering the variables analyzed. Particularly, the retells of Gasolina (Gas), Biblioteca (Library), Empréstimo (Loan), Sanduíche (Sandwich), Futebol (Baseball), and Multas (Ticket) were not significantly different in the three aspects investigated in this study (percentages of words, IUs, and propositions). CONCLUSION: The SRP stories adapted to Portuguese, despite having a quite close number of words, IUs, and propositions to those in the original stories, did not result in retellings with similar number of words, IUs, or propositions across stories. Nonetheless, the parameters analyzed were not significantly different among the majority of the stories, and some were nearly identical. This study identified the SRP stories that can be equivalently used in assessment, reassessment, and possibly in the rehabilitation of patients with communication disorders. Likewise, differences must be considered when the stories are used with pathological populations.

Acquisition of Mandarin long passives by children with developmental language disorder.

This study investigated the comprehension and production of long passives (i.e. bei-constructions with an overt agent) in Mandarin-speaking children with developmental language disorder (DLD). Seventeen preschool children with DLD (1 female; mean age: 61 months old) and 23 typically developing (TD) children (6 females; mean age: 62 months old) participated in a sentence-picture matching task (for comprehension) and an elicited production task. Their nonverbal working memory (NVWM) was measured with the fourth edition of the Wechsler Preschool and Primary Scale of Intelligence. Results showed that children with DLD were less accurate and more likely to choose the picture with reversed thematic roles than their TD peers on passives in the sentence-picture matching task; in the elicited production task, they produced fewer target responses than TD children in passives. For NVWM, although that of the DLD group was lower than that of TD children, most children in the DLD group were within the average range. Furthermore, their performance on passives in the comprehension and production tasks was significantly correlated with their NVWM, which adds to the body of work suggesting links between complex syntax and working memory. However, the fact that NVWM could be preserved in the face of difficulties with passives suggests that this link may be due to NVWM enhancing performance during tasks with a high visual component, while it may not be underlyingly responsible for syntactic impairments in children with DLD.

Babbling in extremely premature infants at 12 months corrected age.

Babbling is an important precursor to speech in infancy, and deviations from the typical babbling development can predict later difficulties in speech, language, and communication. This cross-sectional study aimed to investigate babbling and early speech in Swedish extremely premature infants. Samples of babbling were collected from 20 extremely premature infants (EPT group) at the corrected age of 12 months. Data collection was home-based and consisted of an audio-video recording of each infant playing with a parent. Presence of canonical babbling (CB), and three oral stop variables distinctive of typical babbling, and consonant inventory were assessed. The assessment was performed during a standardised observation of babbling. Data from the EPT group were compared to previously collected data of a reference group of 20 10-month-old infants without known medical diagnoses. The results showed that the EPT group had a lower proportion of infants producing CB, and that they used a significantly smaller consonant inventory compared to the reference group. Although not statistically significant, oral stops were less frequently found in the EPT group. The findings of a restricted consonant inventory and low proportion of CB in the EPT group are not surprising considering that the group has been found to be at risk of speech and language delay in toddlerhood. Still, further research is needed to explore whether babbling at 12 months can predict speech and language skills at an older age in extremely premature infants.