Dataset Information

Semantic Category Convergence in Spanish-English Bilingual Children With and Without Developmental Language Disorder.

ABSTRACT: Purpose The study examines the extent of convergence of semantic category members in Spanish-English bilingual children with reference to adults using a semantic fluency task. Method Thirty-seven children with developmental language disorder (DLD), matched pairwise with 37 typically developing (TD) children in the age range of 7;0-9;11 (years;months), produced items in 7 semantic categories (3 taxonomic and 4 slot-filler) in both Spanish and English. The 10 most frequently produced items for each category by 20 Spanish-English bilingual adults were identified as the most prototypical responses. The top 10 items generated by TD children and children with DLD, in their order of production, were analyzed for the amount of convergence with adults' responses. Results The top 5 items produced by children with DLD showed similar convergence scores as those produced by their TD peers. However, their responses in the 6th to 10th positions showed lower convergence scores than their TD peers. Children's convergence scores were higher for the slot-filler condition compared to taxonomic in both English and Spanish. The convergence scores also significantly differed across the semantic categories. Conclusion The children with DLD show greater convergence on the typical items generated earlier in their word lists than the items generated later. This pattern of convergence and divergence highlights their strengths and weaknesses in the representation of lexical-semantic knowledge for typical versus less typical items. Supplemental Material https://doi.org/10.23641/asha.8323613.

SUBMITTER: Shivabasappa P

PROVIDER: S-EPMC6808352 | biostudies-literature | 2019 Jul

REPOSITORIES: biostudies-literature

ACCESS DATA

Publications

Semantic Category Convergence in Spanish-English Bilingual Children With and Without Developmental Language Disorder.

Shivabasappa Prarthana P Peña Elizabeth D ED Bedore Lisa M LM

Journal of speech, language, and hearing research : JSLHR 20190628 7

Purpose The study examines the extent of convergence of semantic category members in Spanish-English bilingual children with reference to adults using a semantic fluency task. Method Thirty-seven children with developmental language disorder (DLD), matched pairwise with 37 typically developing (TD) children in the age range of 7;0-9;11 (years;months), produced items in 7 semantic categories (3 taxonomic and 4 slot-filler) in both Spanish and English. The 10 most frequently produced items for eac ...[more]

PMID: 31251887

Similar Datasets

Project description:Purpose The purpose of this study was to examine the diagnostic accuracy of traditional measures of phonological ability developed for monolingual English-speaking children with their bilingual peers in both English and Spanish. We predicted that a composite measure, derived from a combination of English and Spanish phonological measures, would result in higher diagnostic accuracy than examining the individual phonological measures of bilingual children separately by language. Method Sixty-six children, ages 3;3-6;3 (years;months), participated in this study: 29 typically developing bilingual Spanish-English-speaking children (x = 5;3), five bilingual Spanish-English-speaking children with speech sound disorders (x = 4;6), 26 typically developing monolingual English-speaking children (x = 4;8), and six monolingual English-speaking children with speech sound disorders (x = 4;9). Children were recorded producing single words using the Assessments of English and Spanish Phonology, and productions were phonetically transcribed and analyzed using the Logical International Phonetics Program. Overall consonants correct-revised; accuracy of early-, middle-, and late-developing sounds; and percent occurrence of phonological error patterns in both English and Spanish were calculated. Receiver operating characteristic curves and support vector machine models were applied to observe diagnostic accuracy, separately and combined, for each speaker group and each language. Results Findings indicated the combination of measures improved diagnostic accuracy within both the English and Spanish of bilingual children and significantly increased accuracy when measures from both languages of bilingual children were combined. Combining measures for the productions of monolingual English-speaking children did not increase diagnostic accuracy. Conclusion To prevent misdiagnosis of speech sound disorders in bilingual preschoolers, the composite phonological abilities of bilingual children need to be assessed across both gross and discrete measures of phonological ability. Supplemental Material https://doi.org/10.23641/asha.16632604.

Project description:Previous studies have shown that most English-speaking children with language difficulties show academic difficulties during their schooling. The present study aimed to describe the academic achievement of children speaking Spanish and Catalan with developmental language disorder (DLD) during their primary education and to predict their academic outcomes using several processing skills assessed at the beginning of their schooling. To this end, we followed 28 children during their schooling (6-12 years of age). Participants were divided into two groups, one with DLD (n = 14) and a control group (n = 14) paired by age, gender, socio-economic status (SES), family language (L1), and classroom. All participants were assessed through different processing skills with the Spanish version of the NEPSY at the beginning of their schooling (age 6): attention (visual attention, auditory attention, and response set), phonological awareness, verbal short-term memory (sentence repetition, and narrative memory), access to language (semantic verbal fluency and rapid naming), and language comprehension (comprehension of verbal commands). At the end of primary education, schools reported the official academic marks at the 1st cycle (6-8 years), 2nd cycle (8-10 years) and 3rd cycle (10-12 years). Direct scores of the processing skills and academic results were used for statistical analyses. Results showed that children with DLD had more frequent grade retention, and their academic marks were significantly lower than those of their peers in all the cycles and for all academic subjects with a high language dependency (all except physical education and mathematics). Those subjects with lower language dependence did not show significant differences (physical education and mathematics). Rapid naming accounted for most of the variance of academic outcomes, followed by phonological awareness, and language comprehension when both groups were taken together. Only rapid naming accounted for academic results in the DLD group and phonological awareness did so for the control group. In sum, children with DLD experienced more academic difficulties during their primary education. Those children (with and without DLD) who experienced difficulties not only with rapid naming but also with phonological awareness and oral language comprehension at the beginning of their schooling showed a higher probability of academic failure.

Project description:Individuals with aphasia frequently show lexical retrieval deficits due to increased interference of semantically related competitors, a phenomenon that can be observed in tasks such as naming pictures grouped by semantic category. These deficits are explained in terms of impaired semantic control, a set of abilities that are to some extent dependent upon executive control (EC). However, the extent to which semantic control abilities can be affected in a second and non-dominant language has not been extensively explored. Additionally, findings in healthy individuals are inconclusive regarding the degree to which semantic processing is shared between languages. In this study, we explored the effect of brain damage on semantic processing by comparing the performance of bilingual individuals with aphasia on tasks involving semantic control during word production and comprehension. Furthermore, we explored whether semantic deficits are related to domain-general EC deficits. First, we investigated the naming performance of Catalan-Spanish bilinguals with fluent aphasia and age-matched healthy controls on a semantically blocked cyclic naming task in each of their two languages (Catalan and Spanish). This task measured semantic interference in terms of the difference in naming latencies between pictures grouped by the same semantic category or different categories. Second, we explored whether lexical deficits extend to comprehension by testing participants in a word-picture matching task during a mixed language condition. Third, we used a conflict monitoring task to explore the presence of EC deficits in patients with aphasia. We found two main results. First, in both language tasks, bilingual patients' performances were more affected than those of healthy controls when they performed the task in their non-dominant language. Second, there was a significant correlation between the speed of processing on the EC task and the magnitude of the semantic interference effect exclusively in the non-dominant language. Taken together, these results suggest that lexical retrieval may be selectively impaired in bilinguals within those conditions where semantic competition is higher, i.e.,- in their non-dominant language; this could possibly be explained by an excessive amount of inhibition placed upon this language. Moreover, lexico-semantic impairments seem to be at least somewhat related to conflict monitoring deficits, suggesting a certain degree of overlap between EC and semantic control.

Project description:In bi- and monolingual children, nonword repetition tasks (NWRTs) differentiate between typically developing (TD) and children with Developmental Language Disorder (DLD). Language specificity is a crucial factor in nonword construction especially for multilingual children. While language-specific nonwords seem less artificial than non-specific nonwords, the application of language-specific phonemes may be less suitable for bilingual children who are exposed to the target language less than monolingual peers. This study evaluates the concurrent and predictive value of a novel, computerized NWRT implemented in the MuLiMi web-platform and its potential in the discrimination of bilingual children with and without DLD, investigating the role of nonwords’ language specificity. Thirty-seven children (of whom 17 had an objective risk of phonological disorders) with at least one Italian-speaking parent, living and attending kindergartens in Germany were tested with the MuLiMi NWRT and German standardized language tests. Caregivers and kindergarten teachers filled in questionnaires. Fourteen of the children were re-tested after 8–12 months. The results suggest that the new test’s concurrent and discriminative validity are good. Analysis of variance revealed highly significant differences between children with and without (an objective risk of) phonological disorders and a significant interaction between nonword specificity and risk group. Significant correlations of initial scores with follow-up scores collected after 8–12 months were also found, as well as correlations with improvements in language abilities. In conclusion, although both language-specific and language-non-specific nonword repetition can support DLD risk identification in bilingual children, language-specific stimuli appear to be particularly sensitive indicators. This is interpreted as confirming DLD children’s reduced sensitivity to frequent, familiar characteristics of the linguistic stimuli. The test’s discriminative and concurrent validity showed to be robust to various potentially influencing factors like patterns of language exposure.

Dataset Information

Semantic Category Convergence in Spanish-English Bilingual Children With and Without Developmental Language Disorder.

Publications

Semantic Category Convergence in Spanish-English Bilingual Children With and Without Developmental Language Disorder.

Similar Datasets

OmicsDI is part of the ELIXIR infrastructure

Tweets