Narrative comprehension and production in children with SLI: an eye movement study

Where to start: Use of the bilingual multidimensional ability scale (B-MAS) to identify developmental language disorder (DLD) in bilingual children

PURPOSE

The identification of developmental language disorder (DLD) is challenging for clinicians who assess bilinguals. This paper introduces a protocol-based approach, the Bilingual Multidimensional Ability Scale (B-MAS), for expert raters to identify DLD in bilinguals.

METHOD

Three bilingual speech-language pathologists (SLPs) reviewed 166 Spanish-English bilingual children's profiles, which included performance on direct (morphosyntax, semantics, and narrative tasks) and indirect (parent/teacher survey) measures in both languages. A multidimensional scale (0-5) was adopted to rate children's performance. A diagnosis of DLD was made if at least two raters assigned a summary rating of ≤2.

RESULT

Analysis of the scores on the B-MAS resulted in the identification of 21 children as having DLD. Though different strategies were employed to make decisions, the three SLPs demonstrated high inter-rater agreement across different ratings (intraclass correlation coefficient values ranged from .83 to .90).

CONCLUSION

For bilingual populations that are understudied and for which gold standards of assessment are not available, the B-MAS can be adopted as a starting point to study DLD or as a reference standard to develop new assessment tools in that population. Clinically, this protocol could be tailored and evaluated by a group of SLPs serving a large population of a particular bilingual group for diagnostic purposes.

Tele-Assessment of Oral Personal Narratives in Arabic- and Hebrew-Speaking Children Using the Global TALES Protocol

INTRODUCTION

Tele-assessment (TA) has the potential to enhance access to speech therapy. This preliminary study aimed to investigate the impact of assessment mode (face-to-face [FTF] vs. TA) on the microstructure level and chosen topics of personal narratives produced by Arabic-speaking and Hebrew-speaking school-age children living in Israel. We also investigated whether performance variations, if evident, could be attributed to the children's language/culture.

METHODS

Eighty-nine 10-year-old children, 38 Arabic-speaking and 51 Hebrew-speaking, living in Israel, participated in this study. Forty participants were assigned to a TA group (via Zoom) and 49 to a FTF group. All participants were assessed using the Global TALES protocol, generating six personal narratives each. The narratives were analyzed regarding the following microstructural measures: total number of words, total number of utterances (TNU), number of different words, and mean length of utterance in words (MLU-W). Additionally, each narrative was categorized into a topic according to the Global TALES protocol.

RESULTS

The analysis revealed no significant main effect of assessment mode on any of the microstructure measures. However, a significant interaction effect between language/culture and assessment mode was found for TNU and MLU-W, with a significant main effect for TNU exclusively in the Arabic narratives, with the Arabic-speaking children producing more utterances through FTF compared to TA. Across language/culture groups, there was a significant effect of assessment mode on the chosen topic. Additionally, there were significantly higher scores in the Hebrew compared to the Arabic narratives in all microstructure measures, and language/culture also influenced the chosen topics.

CONCLUSIONS

The results support the feasibility of TA mode for assessing personal narratives in school-aged children, using the Global TALES protocol. However, the results also suggest that TA results may be affected by the language/culture of the narrator. Finally, the findings highlight the potential influence of TA on the chosen topics of personal narratives, perhaps due to a decrease in the quality of communication in TA.

Online Comprehension of Verbal Number Morphology in Children With Developmental Language Disorder: An Eye-Tracking Study

PURPOSE

Previous studies have raised the possibility of preserved language comprehension in children with developmental language disorder (DLD) in online tasks and within simple sentence structures. Consequently, we evaluated the capacity of children with DLD to comprehend verbal number agreement in simple sentence structures (i.e., verb-object-subject and verb-subject).

METHOD

Using an eye-tracking methodology, we conducted two psycholinguistic experiments with 96 Spanish- and Catalan-speaking participants. The sample was distributed into four groups: 24 children with DLD (age range: 4;6-12;6 [years;months]; average age = 7;8 [years;months]), 24 children with the same chronological age (4;6-12;2, 7;8), 24 children with the same linguistic level (4;6-9;4, 6;8), and 24 university students as language experts (18-30, 22;5).

RESULTS

The experimental data indicate that children with DLD can comprehend verbal number agreement at least under the present experimental conditions.

CONCLUSION

The empirical outcomes suggest that number morphology comprehension by children with DLD might be more typical than what it is generally considered to be.

Sentence Repetition as a Clinical Marker for Mandarin-Speaking Preschoolers With Developmental Language Disorder

PURPOSE

Sentence repetition (SR) is believed to be a clinical marker for developmental language disorder (DLD) across many languages. This study explored the potential of a self-designed Mandarin SR task (MSRT) to reflect Mandarin-speaking preschoolers' language ability and to differentiate children with and without DLD in this population. Furthermore, we aimed to compare five scoring systems for evaluating children's MSRT performance.

METHOD

In Study 1, the MSRT was administered to 59 typically developing (TD) children aged 3;6 (years;months) to 6;5 in China. The task was examined regarding its ability to correlate with language indices derived from children's narrative samples. In Study 2, both a TD and a DLD group were recruited to investigate the task's sensitivity, specificity, and likelihood ratios to distinguish between children with and without DLD.

RESULTS

Study 1 showed that, using four of the five scoring methods, TD children's performance on the MSRT significantly correlated with all the language measures derived from narratives. Study 2 showed that the MSRT was able to differentiate children with and without DLD.

CONCLUSION

The MSRT is a promising tool to reflect language abilities and identify DLD in Mandarin-speaking preschoolers. Based on the current evidence, we recommend that researchers and clinicians select the number of errors in the syllable method or the binary method when scoring responses to meet their specific needs.

SUPPLEMENTAL MATERIAL

https://doi.org/10.23641/asha.19386257.

Oral Narrative Intervention by Tele-Practice in a Case with Developmental Language Disorder

BACKGROUND

A narrative requires the integration and management of linguistic and cognitive skills. It has been observed that children with Developmental Language Disorder (DLD) have difficulties in narrating stories. This research proposes an intervention in a case of a child 9 years and 2 months old with DLD, with the aim of improving his oral narrative skills through a retelling task via telepractice.

METHODS

In the evaluation, standardized tests have been used and a 'remembering a story' task, with a story titled The Lost Backpack, elaborated by one of the authors. Narratives were elicited in two sessions, and were transcribed, coded, and analysed using the Child Language Data Exchange System CHILDES Project tool. The participant received a total of 10 sessions through the Skype platform, which included intervention-addressed explicit instruction about the narrative structure and the use of discourse markers to improve cohesion in story retelling.

RESULTS

Significant changes were observed in the retelling of the story at microstructure and macrostructure levels: an increase of the Mean Length of Utterance (MLU), Types and Tokens, specific vocabulary, discourse markers and the recall of events.

CONCLUSIONS

These results demonstrate the effectiveness of intervention in narrative skills through the oral retelling of a story with visual support via tele-practice.

Real-time comprehension of Spanish prepositions and prepositional locutions in bilingual children with developmental language disorder: A study based on eye-movement evidence

BACKGROUND

Function words, and more specifically prepositions and prepositional locutions, are considered to be one of the most important difficulties for children with DLD.

AIMS

To examine the capacity of bilingual children with developmental language disorder (DLD) to comprehend different Spanish prepositions and prepositional locutions in a simple sentence structure, for example, El gato está sobre la mesa/El gato está bajo la mesa (The cat is on the table/The cat is under the table).

METHODS & PROCEDURES

We used simple sentence structures to reduce lexical difficulties in order to focus our evaluation strictly on the grammatical morphemes under study. A total of 96 Spanish and Catalan-speaking participants, divided into four groups, were evaluated in an eye-tracking psycholinguistic experiment: 24 children with DLD (average age = 7.8 years, age range = 4.6-12.6), 24 children with the same chronological age (average age = 7.8 years, age range = 4.6-12.2), 24 children with the same linguistic level (average age = 6.8 years, age range = 4.6-9.4) and 24 adults (average age = 22.5 years, age range = 18-30).

OUTCOMES & RESULTS

The empirical data show that, despite some differences, bilingual children with and without DLD can comprehend Spanish prepositions and prepositional locutions under the current experimental conditions.

CONCLUSIONS & IMPLICATIONS

Our results suggest that the capacity of bilingual children with DLD to comprehend Spanish prepositions and prepositional locutions in real time and within simple sentence structures is preserved. What this paper adds What is already known on the subject The empirical literature indicates that children with DLD show important errors in the production of functional words in general, and prepositions in particular. However, unlike other grammatical morphemes (such as clitic pronouns and articles), prepositions have been less studied, and the few existing studies have focused on the dimension of language production, not comprehension. What this paper adds to existing knowledge The present study, composed of two experimental tasks, seeks to determine to what extent the observable difficulty in the linguistic production of prepositions is also present in the comprehension of children with DLD. The empirical results suggest a less atypical comprehension in comparison with our initial hypothesis, and the differences that appear between the two tasks, allow us to formulate a theoretical interpretation regarding the mechanisms of their understanding. Thus far, we are not aware of other studies that have evaluated in real time the comprehension of prepositions and prepositional locutions in parallel. Clinical implications of this study Results suggest the presence of a more preserved comprehension of prepositions and prepositional locutions, at least in real-time experimental conditions (eye-tracking) and in simple sentence structures. A less atypical comprehension raises the possibility of a better prognosis for children with DLD. Working with comprehension of simple sentences and the gradual addition of more difficult grammatical morphemes could help to enhance the comprehension of a growing complex grammar.

"El nen s'ha menjat una aranya": The development of narratives in Catalan speaking children

The production of a well-constructed narrative is the culmination of several years of language acquisition and is an important milestone in children's development. There is no current description of narrative development for Catalan speaking children. This study collected elicited narratives in Catalan from 118 children aged 4;0-10;11. Narratives were scored for macrostructure and microstructure. Narrative scores improved with age with maximum performance for macrostructure by 9 years. Children's ability to use micro-structural components of Catalan is variable with some developments continuing beyond 9 years. The results are discussed in relation to theoretical arguments about universal and specific features of narrative development. We conclude by highlighting the usefulness of the new test for future language assessment of children acquiring Catalan.

Real time comprehension of Spanish articles in children with developmental language disorder: Empirical evidence from eye movements

Function words and, more specifically, articles have been widely indicated as one of the main sources of difficulty for children with Developmental Language Disorder (DLD). The present study is the first to assess the online comprehension of Spanish articles in bilingual children with DLD. In an eye tracking experiment, we monitored participants' eye movements as they listened to Spanish articles embedded in structurally simple sentences. Ninety-six subjects from four different groups were evaluated: 24 children with DLD (average age 7;08), 24 children with the same chronological age (average age 7;08), 24 younger children matched for mean length utterance (average age 6;08), and 24 adults (average age 22;05). We calculated the proportion between the preference for the correct visual referent and a competitor object. Our results suggest that children with DLD are capable of timely comprehension of Spanish articles in real time and within simple sentence structures. However, we observed a strong effect of chronological age in the sample of interest; younger children with DLD are able to identify the correct referent, but this preference is weaker compared to the older children with DLD. We also observed local differences between the DLD group, and the other two children control groups, particularly when the chronological age group is introduced as a factor. These findings suggest a developmental trajectory that is different in the DLD group relative to children with typical language development. Notwithstanding, in spite of the article production difficulties previously reported, children with DLD in the present sample appear to be able to comprehend Spanish articles in the current experimental conditions.

Narrative Production in Mandarin-Speaking Children: Effects of Language Ability and Elicitation Method

Purpose We compared the narrative production in Mandarin-speaking children at risk (AR) for developmental language disorder (DLD) and typically developing (TD) controls to address two goals: (a) further our understanding of the Mandarin DLD phenotype and (b) examine the role of elicitation method in differentiating AR from TD. Method Twenty-one AR children and 21 age- and nonverbal IQ-matched peers produced two stories from the Multilingual Assessment Instrument of Narrative, first following an adult model (i.e., story-retell) and then without a model (i.e., story-tell). Group and task effects were analyzed on macrostructure and microstructure measures. Results For general macrostructure score and sentence complexity, children in the AR group performed more poorly than TD children on the more challenging story-tell task and showed decreased scores from retell to tell tasks. In addition, children in the AR group showed poorer performance on number of different words. Productivity and grammaticality measures did not show group differences. Discussion Consistent with previous findings, grammaticality and productivity were relatively preserved but story macrostructure, lexical diversity, and sentence complexity were vulnerable in Mandarin-speaking children with or AR for DLD. Having an adult model benefited both groups in sentence complexity and story macrostructure and potentially helped maintain the performance in TD children as they engaged in the more challenging story-telling task.

Specific Language Impairment: Evaluation and detection of differential psycholinguistic markers in phonology and morphosyntax in Spanish-speaking children

BACKGROUND

The diagnosis of Specific Language Impairment (SLI) is very complex, given the variety of clinical pictures described in this disorder. Knowledge about the linguistic markers of SLI can facilitate its differentiation from the normal profile of language development. These markers can also be used as tools that may improve diagnostic.

AIMS

To determine which psycholinguistic markers best discriminate Spanish-speaking children with SLI from children with typical language development.

METHOD AND PROCEDURE

The performance of 31 Spanish-speaking children with SLI was analysed using a battery of 13 psycholinguistic tasks organized into two areas: phonology and morphosyntax. The performance of the SLI group was compared to that of two subgroups of controls: aged matched (CA) and linguistically matched (CL).

OUTCOMES AND RESULTS

The data show that the SLI group performed worse than the CA subgroup on all 13 verbal tasks. However, the performance of the SLI group did not significantly differ from that of the CL subgroup on most (11/13) of the tasks. Stepwise discriminant analysis established the canonical function of three tasks (morphologic integration, sentence understanding and diadochokinesis) which significantly discriminated SLI from CA, with sensitivity 84% and specificity 90%.

CONCLUSIONS AND IMPLICATIONS

These results contribute to determining the psycholinguistic and clinical characteristics of SLI in Spanish-speaking children and provide some methods for screening assessment.

Why do children with language impairment have difficulties with narrative macrostructure?

BACKGROUND

Research has produced conflicting findings about the effects of language impairment (LI) on narrative macrostructure outcomes.

AIMS

The present study investigated if children with LI perform weaker than typically developing (TD) controls on narrative macrostructure in different tasks, whether this changes over time and if between-group differences stem from linguistic or cognitive factors.

METHODS AND PROCEDURES

A group of monolingual Dutch children with LI (n=84) and a TD control group (n=45) were tested with a story comprehension and a story generation task. All children were five or six at wave 1 and six or seven at wave 2. Information was collected on vocabulary, grammar, verbal memory and sustained attention.

OUTCOMES AND RESULTS

At wave 1, the LI group performed weaker than the TD group in both tasks. At wave 2, the groups performed similarly on story comprehension. On story generation, the TD group still outperformed the LI group. Sustained attention mediated the relationship between group and story generation.

CONCLUSIONS AND IMPLICATIONS

Effects of LI on narrative macrostructure are moderated by age and task and may stem from sustained attention weaknesses. These findings have implications for using narrative tasks in educational and diagnostic settings and may direct future interventions.

Eighteen-month-olds' memory for short movies of simple stories

This study investigated twenty four 18-month-olds' memory for dynamic visual stimuli. During the first visit participants saw one of two brief movies (30 seconds) with a simple storyline displayed in four iterations. After 2 weeks, memory was tested in the visual paired comparison paradigm in which the familiar and the novel movie were contrasted simultaneously and displayed in two iterations for a total of 60 seconds. Eye-tracking revealed that participants fixated the familiar movie significantly more than the novel movie, thus indicating memory for the familiar movie. Furthermore, time-dependent analysis of the data revealed that individual differences in the looking-patterns for the first and second iteration of the movies were related to individual differences in productive vocabulary. We suggest that infants' vocabulary may be indicative of their ability to understand and remember the storyline of the movies, thereby affecting their subsequent memory.

Adjective production by Russian-speaking children with specific language impairment

Research on specific language impairment (SLI) has primarily focused on the acquisition of nouns and verbs. Less attention has been given to other content-word classes, such as adjectives and adverbs. This article investigates adjective production by 7- to 10-year-old Russian-speaking children with SLI and their typically developing (TD) peers and focuses on the production of antonymous adjectives and degree markers in an elicitation experiment. The results show that degree morphology is more impaired in SLI than antonymy. In antonym production, children with SLI were able to catch up with their TD peers by age 8. In the domain of degree, however, the SLI group lagged behind the TD controls across all ages studied. Error analysis indicates that language-impaired children have particular difficulty with agreement inflection and affixal negations. They also substitute adjectives with specific meanings by more general terms. The implications of this study for the morphological-richness hypothesis are discussed.