scholarly journals Identifying Developmental Language Disorder in Vietnamese Children

2019 ◽  
Vol 62 (5) ◽  
pp. 1452-1467 ◽  
Author(s):  
Giang T. Pham ◽  
Sonja Pruitt-Lord ◽  
Catherine E. Snow ◽  
Yen Hoang Thi Nguyen ◽  
Ben Phạm ◽  
...  
Keyword(s):  
Language Disorder ◽  
Risk Groups ◽  
Parent Report ◽  
Developmental Language Disorder ◽  
Clinical Markers ◽  
Expressive Vocabulary ◽  
Language Performance ◽  
Language Sampling ◽  
Language Measures ◽  
Mean Length Of Utterance

Purpose Developmental language disorder (DLD), defined by low language performance despite otherwise normal development, can negatively impact children's social and academic outcomes. This study is the 1st to examine DLD in Vietnamese. To lay the foundation, we identified cases of DLD in Vietnam and explored language-specific characteristics of the disorder. Method Teacher ratings of 1,250 kindergarteners living in Hanoi, Vietnam, were used to recruit children with and without risk for DLD. One hundred four children completed direct measures of vocabulary and language sampling, and their parents completed in-depth surveys. We examined convergence and divergence across tasks to identify measures that could serve as reliable indicators of risk. Then, we compared performance on direct language measures across ability levels. Results There were positive associations between teacher and parent report and between report and direct language measures. Three groups were identified based on convergence across measures: DLD, some risk for DLD, and no risk. The DLD group performed lowest on measures of receptive and expressive vocabulary, mean length of utterance, and grammaticality. Although children with DLD exhibited a greater number of errors, the types of errors found were similar across DLD and No Risk groups. Conclusions Similar to rates found globally, 7% of the kindergarten population in Vietnam exhibited risk for DLD. Results highlight the importance of parent and teacher report and the value of multiple measures to identify DLD. We discuss potential clinical markers for DLD in the Vietnamese language and outline future directions.

The language phenotype of a small geographically isolated Russian-speaking population: Implications for genetic and clinical studies of developmental language disorder

2012 ◽  
Vol 34 (5) ◽  
pp. 971-1003 ◽  
Author(s):  
NATALIA RAKHLIN ◽  
SERGEY A. KORNILOV ◽  
DEAN PALEJEV ◽  
ROMAN A. KOPOSOV ◽  
JOSEPH T. CHANG ◽  
...  
Keyword(s):  
Clinical Studies ◽  
Language Disorder ◽  
Age Groups ◽  
Verbal Working Memory ◽  
Target Population ◽  
Heterogeneous Structure ◽  
Developmental Language Disorder ◽  
Language Performance ◽  
School Aged Children ◽  
Mean Length Of Utterance

ABSTRACTThis article describes the results of an epidemiological study of developmental language disorder (DLD) in an isolated rural Russian population. We report an atypically high prevalence of DLD across all age groups when contrasted with a comparison population. The results are corroborated by a set of comparisons of school-aged children from the target population with their age peers and mean length of utterance matches from the comparison population. We also investigate the relationship between nonverbal cognition, verbal working memory, and expressive language performance in the population, and find statistically significant but small effect sizes. Finally, we describe the complex and heterogeneous structure of the phenotype in the population along with patterns of its vertical transmission on the basis of the exemplar pedigrees, and discuss the implications of our findings for genetic and clinical studies of DLD.

scholarly journals Efficacy of the Treatment of Developmental Language Disorder: A Systematic Review

2021 ◽  
Vol 11 (3) ◽  
pp. 407
Author(s):  
Sara Rinaldi ◽  
Maria Cristina Caselli ◽  
Valentina Cofelice ◽  
Simonetta D’Amico ◽  
Anna Giulia De Cagno ◽  
...  
Keyword(s):  
Language Disorder ◽  
Negative Impact ◽  
Receptive Vocabulary ◽  
Primary School Children ◽  
Control Group ◽  
Developmental Language Disorder ◽  
Expressive Vocabulary ◽  
Phonological Skills ◽  
Syntactic Skills ◽  
Positive Effect

Background. Language disorder is the most frequent developmental disorder in childhood and it has a significant negative impact on children’s development. The goal of the present review was to systematically analyze the effectiveness of interventions in children with developmental language disorder (DLD) from an evidence-based perspective. Methods. We considered systematic reviews, meta-analyses of randomized controlled trials (RCTs), control group cohort studies on any type of intervention aimed at improving children’s skills in the phono-articulatory, phonological, semantic-lexical, and morpho-syntactic fields in preschool and primary school children (up to eight years of age) that were diagnosed with DLD. We identified 27 full-length studies, 26 RCT and one review. Results. Early intensive intervention in three- and four-year-old children has a positive effect on phonological expressive and receptive skills and acquisitions are maintained in the medium term. Less evidence is available on the treatment of expressive vocabulary (and no evidence on receptive vocabulary). Intervention on morphological and syntactic skills has effective results on expressive (but not receptive) skills; however, a number of inconsistent results have also been reported. Only one study reports a positive effect of treatment on inferential narrative skills. Limited evidence is also available on the treatment of meta-phonological skills. More studies investigated the effectiveness of interventions on general language skills, which now appears as a promising area of investigation, even though results are not all consistent. Conclusions. The effectiveness of interventions over expressive and receptive phonological skills, morpho-syntactic skills, as well as inferential skills in narrative context underscores the importance that these trainings be implemented in children with DLD.

scholarly journals The Association between Parent and Child-Report Measures of Alexithymia in Children with and without Developmental Language Disorder

2021 ◽  
Vol 18 (16) ◽  
pp. 8309
Author(s):  
Hannah Hobson ◽  
Neeltje P. van den Bedem
Keyword(s):  
Language Disorder ◽  
Parent Report ◽  
Learning Opportunities ◽  
Pragmatic Language ◽  
Developmental Language Disorder ◽  
Language Abilities ◽  
Child Report ◽  
Child Reports ◽  
Expression Of Emotion ◽  
Communicative Abilities

Accurate measures of alexithymia, an inability to recognise and describe one’s own emotions, that are suitable for children are crucial for research into alexithymia’s development. However, previous research suggests that parent versus child reports of alexithymia do not correlate. Potentially, children may report on the awareness of their emotions, whereas parent-report measures may reflect children’s verbal expression of emotion, which may be confounded by children’s communicative abilities, especially in conditions such as Developmental Language Disorder (DLD). Given theoretical arguments that alexithymia may develop due to language impairments, further research into alexithymia in DLD is also needed. This project examined parent and child report measures of alexithymia in children with DLD (n = 106) and without DLD (n = 183), and their association to children’s communication skills. Parent and child reports were not significantly correlated in either group, and children with DLD had higher alexithymia scores on the parent-report measure only. Thus, parent and child measures of alexithymia likely reflect different constructs. Pragmatic language problems related to more parent-reported alexithymia, over and above group membership. Structural language abilities were unrelated to alexithymia. We suggest decreased social learning opportunities, rather than a language measure artefact, underlie increased alexithymic difficulties in DLD.

scholarly journals The Influence of Quantitative Intervention Dosage on Oral Language Outcomes for Children With Developmental Language Disorder: A Systematic Review and Narrative Synthesis

2021 ◽  
pp. 1-17
Author(s):  
Pauline Frizelle ◽  
Anna-Kaisa Tolonen ◽  
Josie Tulip ◽  
Carol-Anne Murphy ◽  
David Saldana ◽  
...  
Keyword(s):  
Oral Language ◽  
Language Disorder ◽  
Controlled Trial ◽  
Experimental Manipulation ◽  
Quantitative Aspect ◽  
Developmental Language Disorder ◽  
Dose Frequency ◽  
Language Interventions ◽  
Quasi Experimental ◽  
Language Measures

Purpose The aim of this study was to examine the degree to which quantitative aspects of dosage (dose, dose frequency, and total intervention duration) have been examined in intervention studies for children with developmental language disorder (DLD). Additionally, to establish the optimal quantitative dosage characteristics for phonology, vocabulary, and morphosyntax outcomes. Method This registered review (PROSPERO ID CRD42017076663) adhered to PRISMA guidelines. Search terms were included in seven electronic databases. We included peer-reviewed quasi-experimental, randomized controlled trial or cohort analytical studies, published in any language between January 2006 and May 2020. Included articles reported on participants with DLD ( M = 3–18 years); oral language interventions with phonology, vocabulary, or morphosyntax outcomes; and experimental manipulation or statistical analysis of any quantitative aspect of dosage. Studies were appraised using the Cochrane risk-of-bias tool. Results Two hundred forty-four articles reported on oral language interventions with children with DLD in the domains of interest; 13 focused on experimentally/statistically manipulating quantitative aspects of dosage. No article reported phonological outcomes, three reported vocabulary, and eight reported morphosyntax. Dose frequency was the most common characteristic manipulated. Conclusions Research is in its infancy, and significant further research is required to inform speech-language pathologists in practice. Dosage characteristics are rarely adequately controlled for their individual effects to be identified. Findings to date suggest that there is a point in vocabulary and morphosyntax interventions after which there are diminishing returns from additional dosage. If dose is high (number of learning opportunities within a session), then the literature suggests that session frequency can be reduced. Frequent, short sessions (2/3 × per week, approximately 2 min) and less frequent, long sessions (1 × per week, approximately 20 min) have yielded the best outcomes when composite language measures have been used; however, replication and further research are required before clinicians can confidently integrate these findings into clinical practice. Supplemental Material https://doi.org/10.23641/asha.13570934

The Use of Spontaneous Language Measures as Criteria for Identifying Children With Specific Language Impairment: An Attempt to Reconcile Clinical and Research Incongruence

1996 ◽  
Vol 39 (3) ◽  
pp. 643-654 ◽  
Author(s):  
Michelle Dunn ◽  
Judith Flax ◽  
Martin Sliwinski ◽  
Dorothy Aram
Keyword(s):  
Language Impairment ◽  
Clinical Judgment ◽  
Specific Language Impairment ◽  
Language Performance ◽  
Normal Children ◽  
Spontaneous Language ◽  
Optimal Subset ◽  
Language Data ◽  
Language Measures ◽  
Mean Length Of Utterance

Criteria for identification of children as specifically language impaired (SLI) vary greatly among clinicians and researchers. Standardized psychometric discrepancy criteria are more restrictive and perhaps less sensitive to language impairment than is clinical judgment based on a child’s language performance in naturalistic contexts. This paper examines (a) differences in groups of preschool children clinically diagnosed as SLI who were and were not identified as SLI through standard psychometric discrepancy criteria, and (b) the validity of quantitative measures of mean length of utterance (MLU), syntax, and pragmatics derived from a spontaneous language sample as criteria for discriminating clinically diagnosed preschoolers from normally developing preschoolers. Spontaneous language data indicated that children clinically identified as SLI produced a significantly higher percentage of errors in spontaneous speech than normal children whether they met psychometric discrepancy criteria or not. Logistic regression analysis indicated that a combination of MLU, percent structural errors, and chronological age was the optimal subset of variables useful for predicting a clinical diagnosis of SLI. This combined criterion captured a larger proportion of the clinically identified SLI children than even the best psychometric discrepancy criteria.

scholarly journals The Relationship Between Standardized Measures of Language and Measures of Spontaneous Speech in Children With Autism

2003 ◽  
Vol 12 (3) ◽  
pp. 349-358 ◽  
Author(s):  
Karen Condouris ◽  
Echo Meyer ◽  
Helen Tager-Flusberg
Keyword(s):  
Standardized Tests ◽  
Children With Autism ◽  
Spontaneous Speech ◽  
Vocabulary Test ◽  
Expressive Vocabulary ◽  
Standardized Measures ◽  
Lexical Semantic ◽  
Language Measures ◽  
Mean Length Of Utterance ◽  
The Relationship

This study investigated the relationship between scores on standardized tests (Clinical Evaluation of Language Fundamentals [CELF], Peabody Picture Vocabulary Test-Third Edition [PPVT-III], and Expressive Vocabulary Test) and measures of spontaneous speech (mean length of utterance [MLU], Index of Productive Syntax, and number of different word roots [NDWR]) derived from natural language samples obtained from 44 children with autism between the ages of 4 and 14 years old. The children with autism were impaired across both groups of measures. The two groups of measures were significantly correlated, and specific relationships were found between lexical-semantic measures (NDWR, vocabulary tests, and the CELF lexical-semantic subtests) and grammatical measures (MLU, and CELF grammar subtests), suggesting that both standardized and spontaneous speech measures tap the same underlying linguistic abilities in children with autism. These findings have important implications for clinicians and researchers who depend on these types of language measures for diagnostic purposes, assessment, and investigations of language impairments in autism.

scholarly journals The Effects of Frequency and Predictability on Repetition in Children With Developmental Language Disorder

2020 ◽  
Vol 63 (4) ◽  
pp. 1165-1180
Author(s):  
Justin B. Kueser ◽  
Laurence B. Leonard
Keyword(s):  
Language Production ◽  
Language Disorder ◽  
Low Frequency ◽  
Nonword Repetition ◽  
Developmental Language Disorder ◽  
Two Factors ◽  
High Predictability ◽  
Overall Performance ◽  
Mean Length Of Utterance ◽  
Repetition Task

Purpose Studies have shown that children with typical development (TD) respond to frequency and predictability when repeating nonidiomatic multiword sequences (e.g., go wash your hands ). We extended these findings by explicitly examining the interaction between frequency and predictability in a repetition task for children with developmental language disorder (DLD) and children with TD. Method We created 48 four-word phrases, manipulating two factors: the frequency of occurrence of the entire four-word phrase (e.g., look in the mirror vs. look in the basket ) and the predictability of the fourth word in the phrase given the preceding three words (e.g., corn on the ___ vs. look in the ___ ). These phrases were presented in a repetition task to 17 children with DLD ( M age = 58.89 months), 19 same-age children with TD ( M age = 59.79 months), and 17 younger children with TD matched to the DLD group on nonword repetition and mean length of utterance ( M age = 38.94 months). Children's repetitions were judged for the presence or absence of word and morphological errors. Only the first three words of the sequence were scored (e.g., look in the ). Results We found a main effect of sequence frequency, with high-frequency sequences being repeated more accurately than low-frequency sequences, modulated by a significant interaction with predictability, where the effect of sequence frequency was larger for sequences with high-predictability contexts than for sequences with low-predictability contexts. We also found a significant effect of group, with children with DLD demonstrating poorer overall performance, particularly when compared to the same-age group with TD. Conclusions Frequency and predictability are strong predictors of language production in children with TD. These factors also have effects for children with DLD, raising important clinical questions about the design of facilitative contexts for the teaching of difficult linguistic forms.

scholarly journals Diagnostic Accuracy of the Photographic Expressive Persian Grammar Test to Identify 4-6 Years Old Children With Developmental Language Disorder

2020 ◽  
Vol 18 (3) ◽  
pp. 345-354
Author(s):  
Toktam Maleki ShahMahmood ◽  
◽  
Zahra Ghayoumi-Anaraki ◽  
Abbas Ebadi ◽  
Fatemeh Haresabadi ◽  
...  
Keyword(s):  
Diagnostic Accuracy ◽  
Clinical Judgment ◽  
Language Disorder ◽  
Empirical Support ◽  
Accurate Diagnosis ◽  
Developmental Language Disorder ◽  
Language Impaired ◽  
Speech Language Pathologist ◽  
Sensitivity Specificity ◽  
Mean Length Of Utterance

Objectives: Accurate diagnosis of Persian children with Developmental Language Disorder (DLD) is regarded as a challenge for Speech and Language Pathologists (SLPs) in Iran because of the lack of formal linguistic tests that can reliably distinguish language-impaired children from Typically-Developing (TD) children. This study aimed to investigate the diagnostic accuracy of the photographic expressive Persian Grammar Test (PEGT). Methods: The participants were forty 4-6 years old monolingual Persian speakers who were categorized into two groups of DLD (n=20) and TD (n=20) children based on the MLU (mean length of utterance) scores as the reference standard and clinical judgment of an experienced speech-language pathologist. PEGT was administered to all participants, and the results were analyzed using the Mann-Whitney test and Rock Chart (ROC) to estimate the ability of the PEGT to differentiate between children with DLD and TD and to determine its sensitivity, specificity, and the optimal cutoff point. Results: The results revealed that children with DLD performed significantly lower than their TD peers in the PEGT (P<0.05). Both sensitivity and specificity measures of PEGT were estimated as 100% at the optimal cut-off point of 12.5. Discussion: The data provide empirical support for the use of the PEGT for accurate diagnosis of preschool children with DLD from their TD peers.

scholarly journals Properties of Spoken Persuasive Language Samples From Typically Developing Adolescents

2020 ◽  
Vol 51 (2) ◽  
pp. 441-456 ◽  
Author(s):  
John Heilmann ◽  
Thomas O. Malone ◽  
Marleen F. Westerveld
Keyword(s):  
Latent Variables ◽  
The United States ◽  
Spoken Language ◽  
Performance Data ◽  
Persuasive Communication ◽  
Typically Developing ◽  
Language Performance ◽  
Language Sampling ◽  
Persuasive Discourse ◽  
Language Measures

Purpose Persuasive communication skills are vital for achieving success in school, at work, and in social relationships. To facilitate assessment of persuasive discourse, we developed a clinically feasible persuasive speaking protocol and used it to compile a database of language samples. This database allowed us to describe the properties of adolescents' persuasive speaking skills. Method We collected spoken language samples from 179 typically developing students in Grades 8–12, recruited from the United States and Australia. Participants were asked to persuade an authority figure to make a change in a rule or policy. Results Language performance data reflecting both microstructural and macrostructural properties of spoken language were summarized and broken down by grade. We completed a factor analysis that documented three latent variables (syntax, discourse difficulties, and content). To test the validity of the persuasive measures, a subset of the participants completed an additional battery of assessments, which revealed weak to moderate relationships between the persuasive measures, general language ability, and working memory. There was no significant relationship between the persuasive language measures and an assessment of personality. Conclusion Our persuasive language sampling protocol facilitated the collection of valid language performance data. The summary data can be used as benchmarks for clinical evaluations of adolescents suspected of having language difficulties.

scholarly journals Comparing Tense and Agreement Productivity in Boys With Fragile X Syndrome, Children With Developmental Language Disorder, and Children With Typical Development

2020 ◽  
Vol 63 (4) ◽  
pp. 1181-1194
Author(s):  
Elizabeth Hilvert ◽  
Jill Hoover ◽  
Audra Sterling ◽  
Susen Schroeder
Keyword(s):  
Fragile X Syndrome ◽  
Language Disorder ◽  
Fragile X ◽  
Past Tense ◽  
Typical Development ◽  
Developmental Language Disorder ◽  
Third Person ◽  
Complicated Pattern ◽  
The Individual ◽  
Mean Length Of Utterance

Purpose This study compared and characterized the tense and agreement productivity of boys with fragile X syndrome (FXS), children with developmental language disorder (DLD), and children with typical development (TD) matched on mean length of utterance. Method Twenty-two boys with FXS ( M age = 12.22 years), 19 children with DLD ( M age = 4.81 years), and 20 children with TD ( M age = 3.23 years) produced language samples that were coded for their productive use of five tense markers (i.e., third-person singular, past tense –ed , copula BE , auxiliary BE , and auxiliary DO ) using the tense and agreement productivity score. Children also completed norm-referenced cognitive and linguistic assessments. Results Children with DLD generally used tense and agreement markers less productively than children with TD, particularly third-person singular and auxiliary BE . However, boys with FXS demonstrated a more complicated pattern of productivity, where they were similar to children with DLD and TD, depending on the tense marker examined. Results revealed that children with DLD and TD showed a specific developmental sequence of the individual tense markers that aligns with patterns documented by previous studies, whereas boys with FXS demonstrated a more even profile of productivity. Conclusions These findings help to further clarify areas of overlap and discrepancy in tense and agreement productivity among boys with FXS and children with DLD. Additional clinical implications of these results are discussed.

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