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1.
J Child Lang ; : 1-22, 2023 Jul 06.
Artigo em Inglês | MEDLINE | ID: mdl-37409543

RESUMO

Current understanding of word-finding (WF) difficulties in children and their underlying language processing deficit is poor. Authors have proposed that different underlying deficits may result in different profiles. The current study aimed to better understand WF difficulties by identifying difficult tasks for children with WF difficulties and by focusing on semantic vs. phonological profiles. Twenty-four French-speaking children with WF difficulties and 22 children without WF difficulties, all aged 7- to 12-years-old, participated. They were compared on a range of measures to cover the overall mechanism of WF and the quality of semantic and phonological representations. The largest differences were found on a parent questionnaire and a word definition task. Cluster analyses revealed "high performance" and "low performance" clusters, with intermediary groups. These clusters did not match the expected semantic vs. phonological profiles derived from models of lexical access, suggesting that WF difficulties may be linked to both semantic and phonological deficits.

2.
Int J Lang Commun Disord ; 58(1): 138-153, 2023 01.
Artigo em Inglês | MEDLINE | ID: mdl-36043499

RESUMO

BACKGROUND: Some data call into question the persistence of developmental language disorders (DLDs) identified during the preschool period. For this reason, speech-language pathologists (SLPs) often reassess children. However, it is unclear if the instability of the profiles documented in community sample studies is present in children referred to specialized clinics. Given the scarcity of SLP resources, is re-evaluating the language skills of these children a good use of clinical time? AIM: To examine the stability of the findings from two SLP assessments in a sample of Canadian preschool children referred to a tertiary clinic between the ages of 2 and 6 years. It was hypothesized that children under the age of 4 years at first assessment and children with less severe initial deficits would show less stability of DLD diagnosis. METHODS & PROCEDURES: The clinical files of children referred to an early childhood psychiatric clinic in Canada were reviewed. For 149 children with two SLPs assessment reports, persistence of language deficits was documented and tested with McNemar's statistics. Differences between preschoolers under the age of 4 versus 4 years and over, as well as between mildly and severely impaired children, were examined. OUTCOMES & RESULTS: High level of agreement (94%) and McNemar's test (p = 0.180) supported the stability of initial diagnosis. The stability for children assessed before the age of 4 (n = 64) was 100%, and was significantly different from older children's (n = 85) stability of 89% (Fisher's exact test, p = 0.01; bilateral). The stability for children with mild impairments (n = 18) was 78%, which was significantly lower than the stability (97%) in children with severe impairments (n = 114) (Fisher's exact test, p = 0.007; bilateral). CONCLUSIONS & IMPLICATIONS: No instability of language status was observed in children assessed before 4 years of age, which could be related to the significant severity of the difficulties that children in this age group presented and be specific to this type of clinical sample. The great stability of language status observed in preschoolers referred to a specialized clinic suggests that clinicians should limit reassessments to devote available resources to intervention efforts. WHAT THIS PAPER ADDS: What is already known on this subject? Previous research that has demonstrated important instability in the classification of language impairment before 4 years of age gathered data mainly by screening the general population or was not based on a comprehensive clinical assessment. What this paper adds to existing knowledge? This study investigated the classification stability of DLD between two comprehensive SLP assessments in a clinical sample of Canadian preschoolers. The results indicate great stability of language status assessed before 4 years old in this population, suggesting that severity of impairments may trump the age factor in this group. What are the potential or actual clinical implications of this work? In the case of children referred to a specialized clinic, clinicians and policymakers should be aware that DLD diagnosis made before 4 years of age remains stable during preschool age, and that a best practice with this population would be to abandon unnecessary testing in favour of early intervention.


Assuntos
Transtornos da Comunicação , Transtornos do Desenvolvimento da Linguagem , Humanos , Pré-Escolar , Criança , Adolescente , Transtornos do Desenvolvimento da Linguagem/diagnóstico , Transtornos do Desenvolvimento da Linguagem/psicologia , Canadá , Idioma , Desenvolvimento da Linguagem
3.
Int J Lang Commun Disord ; 57(5): 1098-1111, 2022 09.
Artigo em Inglês | MEDLINE | ID: mdl-36150185

RESUMO

BACKGROUND: Research in word-finding difficulties is sparse, especially in languages other than English. As a result, the factors associated with the frequency of word-finding behaviours are poorly understood, particularly in discourse. AIMS: This exploratory study is the first to collect data relative to the expected frequency of word-finding behaviours in narration for French speakers aged 7-12 years old with typical development; and (2) to identify the factors associated with the frequency of word-finding behaviours in narration. We hypothesized that sociodemographic characteristics, language abilities and characteristics of the spoken productions could be linked to word-finding behaviours. METHODS & PROCEDURES: The participants consisted of 61 French-speaking children aged 7-12 years old (M = 9;09 years, SD = 1;06 years) with typical development. Children were asked to complete a receptive vocabulary task, a non-word-repetition task and two narrative tasks. The children's narrative samples were coded using a discourse analysis of word-finding behaviours, as described by Diane J. German. OUTCOMES & RESULTS: Participants produced 39% of T-units with least one word-finding behaviour, which included relatively frequent use of repetitions and word reformulations. Regression analyses revealed that the participants' gender was the only significant variable associated with the frequency of word-finding behaviours in narration. Boys produced a higher percentage of T-units with at least one word-finding behaviour. Post-hoc analyses suggested that gender differences reflected differences in repetitions and word reformulations. Boys and girls did not differ on any other language measures collected. CONCLUSIONS & IMPLICATIONS: Speech-language pathologists may want to take into account a child's gender when assessing word-finding difficulties in narration. Additional studies are needed to understand whether this finding extends to other word-finding tasks and to children with word-finding difficulties. WHAT THIS PAPER ADDS: What is already known on the subject Studies in English have identified that analyses of word-finding behaviours in discourse can be used to correctly identify children with word-finding difficulties. Studies are needed in other languages to determine if this observation holds true across languages. Moreover, the factors associated with the frequency of word-finding behaviours in discourse are poorly understood. What this paper adds to existing knowledge The frequency of word-finding difficulties in narration was higher in our study of French-speaking children than in previous studies of English. Gender was the only factor associated with the frequency of word-finding difficulties. What are the potential or actual clinical implications of this work? The language and task used to assess word-finding skills as well as the child's gender may be important to take into account when assessing word-finding difficulties based on word-finding behaviours.


Assuntos
Transtornos do Desenvolvimento da Linguagem , Narração , Criança , Cognição , Feminino , Humanos , Idioma , Masculino , Vocabulário
4.
Augment Altern Commun ; 38(3): 135-147, 2022 09.
Artigo em Inglês | MEDLINE | ID: mdl-35726671

RESUMO

This study explored performance on expressive and receptive graphic symbol tasks and spoken comprehension by individuals who use augmentative and alternative communication (AAC) as well as the relationship of performance with participants' skills and characteristics. Participants were 19 children and youth (aged 5- to 18-years-old) who used aided communication. Four experimental tasks were administered, with either speech or symbols as input (stimuli) and symbols or choice from an array of pictures as output (response). Symbols were not accompanied by written or spoken labels in the tasks. Measures of receptive vocabulary, receptive syntax, memory, and visual cognitive skills as well as information regarding participant characteristics were collected. There were strong relationships among all experimental tasks. Cluster analysis revealed different response patterns that may suggest a progression in expressive and receptive performance with graphic symbol sentences. Individual differences in receptive language, particularly receptive syntax, were related to task performance. The findings suggest that different ways of experiencing symbols, in addition to spoken comprehension of the sentences and receptive spoken language more generally, may contribute to expressive graphic symbol sentences. Performance on receptive symbol tasks may uncover a level of facility with the graphic-symbol modality not observed through expressive symbol use in communicative situations.


Assuntos
Auxiliares de Comunicação para Pessoas com Deficiência , Transtornos da Comunicação , Criança , Adolescente , Humanos , Pré-Escolar , Idioma , Vocabulário , Comunicação
5.
J Pediatr ; 239: 126-135.e5, 2021 12.
Artigo em Inglês | MEDLINE | ID: mdl-34454950

RESUMO

OBJECTIVE: To characterize the neuropsychological outcome of children with congenital heart disease (CHD) at age 5 years; the stability of cognitive and language abilities across childhood; and to identify early neurodevelopmental markers of neuropsychological outcomes in these children. STUDY DESIGN: Five-year-old children (n = 55) with complex CHD were assessed using standardized and comprehensive neuropsychological measures. Stability of language and cognitive performance was assessed by comparing standardized scores between ages 1, 2, and 5 years old. Association between 5-year-old skills and scores obtained in early childhood was studied to identify potential early markers of preschool performance. Receiver operating characteristic curves were used to evaluate the classification accuracy of Bayley Scales of Infant Development, Third Edition scales in identifying later impairments. RESULTS: At age 5 years, our cohort obtained scores significantly below the norms on most developmental domains, with 35% to 65% of participants showing impaired short-term/working memory, attention, and preacademic skills. Developmental patterns measured between ages 1 and 5 years were different for cognitive and language domains, with a decline with age for cognitive functioning and stable results for expressive language. The Bayley Scales of Infant Development, Third Edition language scores at age 2 years provided a good predictive value in identifying children with impaired language at age 5 years. CONCLUSIONS: In our cohort, we found a high prevalence of impairments affecting higher-order cognitive domains. Although language difficulties can be detected as early as 2 years of age, other neuropsychological impairments, such as attention and pre-academic skills, only appear later during development, which reinforces the need for long-term monitoring and systematic assessment before school entry.


Assuntos
Deficiências do Desenvolvimento/etiologia , Cardiopatias Congênitas/complicações , Pré-Escolar , Estudos de Coortes , Deficiências do Desenvolvimento/diagnóstico , Feminino , Humanos , Lactente , Masculino , Testes Neuropsicológicos , Curva ROC
6.
Int J Speech Lang Pathol ; 23(2): 155-167, 2021 04.
Artigo em Inglês | MEDLINE | ID: mdl-32366126

RESUMO

PURPOSE: To explore expressive and receptive use of speech and graphic symbols and relationships with linguistic and cognitive skills in children with typical development. METHOD: Participants were 82 children with typical development (4 to 9 years). Measures of memory, visual analysis skills, and receptive language were used, along with five experimental tasks with speech or symbols as input (stimulus) or output (response), using single clause and compound clause stimuli. Cluster analysis grouped participants with similar performances patterns, who were then compared on linguistic and cognitive skill measures. RESULT: The lowest performing group sometimes accurately interpreted graphic symbol utterances that were visible during responding. The mid-performing group was stronger on expressive than receptive symbol utterances when the model did not remain visible. The highest group was comparable on expressive and receptive symbol tasks, but nonetheless stronger with spoken utterances. Relationships of linguistic and cognitive skills with task performance differed across the clusters. CONCLUSION: The findings help clarify the input-output modality asymmetry in graphic symbol communication. Spoken language proficiency does not directly transfer to sentence-level expressive and receptive graphic symbol use. Exploring potentially challenging sentence-level phenomena is important. Research is warranted to explore developmental progressions and potential clinical applications more systematically.


Assuntos
Idioma , Fala , Criança , Humanos , Desenvolvimento da Linguagem , Testes de Linguagem , Linguística
7.
J Child Lang ; 48(2): 285-324, 2021 03.
Artigo em Inglês | MEDLINE | ID: mdl-32524936

RESUMO

Pierce et al. (2017) have proposed that variations in the timing, quality and quantity of language input during the earliest stages of development are related to variations in the development of phonological working memory and, in turn, to later language learning outcomes. To examine this hypothesis, three groups of children who are at-risk for language learning were examined: children with cochlear implants (CI), children with developmental language disorder (DLD), and internationally-adopted (IA) children, Comparison groups of typically-developing monolingual (MON) children and second language (L2) learners were also included. All groups were acquiring French as a first or second language and were matched on age, gender, and socioeconomic status, as well as other group-specific factors; they were between 5;0-7;3 years of age at time of testing. The CI and DLD groups scored significantly more poorly on the memory measures than the other groups; while the IA and L2 groups did not differ from one another. While the IA group performed more poorly than the MON group, there was no difference between the L2 and MON groups. We also found differential developmental relationships between phonological memory and language among the groups of interest in comparison to the typically-developing MON and L2 groups supporting the hypothesis that language experiences early in life are consequential for language development because of their effects on the development of phonological memory.


Assuntos
Transtornos do Desenvolvimento da Linguagem , Desenvolvimento da Linguagem , Pré-Escolar , Humanos , Idioma , Testes de Linguagem , Linguística , Memória de Curto Prazo
8.
Eur J Paediatr Neurol ; 23(3): 491-499, 2019 May.
Artigo em Inglês | MEDLINE | ID: mdl-30954376

RESUMO

This longitudinal study aims to describe the trajectory of language development in children with CHD aged 12-24 months assessed through an early monitoring and individualized intervention program. We also sought to determine whether early language performances, at 12 months of age, predict 24-month language abilities. We conducted developmental assessments of 49 children with CHD using the Bayley Scales of Infant and Toddler Developmental, third edition (Bayley-III) at 12 and 24 months, and the MacArthur-Bates Communicative Development Inventories (MBCDI) at 12, 18 and 24 months. Compared to normative populations, CHD patients showed significantly lower mean scores in both receptive and expressive language scales of the Bayley-III and the MBCDI at 12 months, whereas at 18 and 24 months only expressive language scores were reduced. No differences were found in the cognitive scale. Communicative gestures at 12 months were significantly predictive of language skills at 24 months of age. Our findings indicate specific vulnerability of language outcome, especially in expressive skills, rather than a global cognitive impairment in our patients with CHD. We recommend using communicative gestures as an early marker of language development to improve our ability to detect language delays in this population.


Assuntos
Cardiopatias Congênitas/complicações , Transtornos do Desenvolvimento da Linguagem/epidemiologia , Transtornos do Desenvolvimento da Linguagem/etiologia , Desenvolvimento da Linguagem , Pré-Escolar , Feminino , Humanos , Lactente , Estudos Longitudinais , Masculino
9.
Am J Speech Lang Pathol ; 26(1): 138-145, 2017 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-28166549

RESUMO

PURPOSE: This study updated and extended our previous investigation (Malas et al., 2015) of feeding-swallowing difficulties and concerns (FSCs) in children with language impairments (LI) by using more stringent inclusion criteria and targeting children earlier in the care delivery pathway. METHOD: Retrospective analyses were performed on the clinical files of 29 children (average age: 60 months, SD = 9.0) diagnosed as having LI using standardized testing, nonstandardized testing and final speech-language pathologist judgment. The files of children born prematurely or with a history of anatomical, structural, neurodevelopmental, cognitive, sensory, motor, or speech disorders were excluded. Literature-based indicators were used to determine the prevalence of difficulties in sucking, food transition, food selectivity, and salivary control. Values were compared with the general population estimate of Lindberg et al. (1992). RESULTS: A significantly higher percentage of histories of FSCs (48%) were found in the files of children with LI when compared with the population estimate (χ2 = 13.741, df = 1, p < .001). Difficulties in food transition (31%) and food selectivity (14%) were the most frequent. Data confirm and extend our previous findings and suggest that a previous history of FSCs may characterize children with LI early in their care delivery pathway.


Assuntos
Transtornos de Deglutição/diagnóstico , Transtornos da Alimentação e da Ingestão de Alimentos/diagnóstico , Transtornos da Linguagem/diagnóstico , Criança , Pré-Escolar , Transtornos de Deglutição/epidemiologia , Transtornos de Deglutição/terapia , Transtornos da Alimentação e da Ingestão de Alimentos/epidemiologia , Transtornos da Alimentação e da Ingestão de Alimentos/terapia , Feminino , Humanos , Transtornos da Linguagem/epidemiologia , Transtornos da Linguagem/terapia , Masculino , Anamnese , Estudos Retrospectivos , Fatores de Risco , Estatística como Assunto
10.
J Commun Disord ; 63: 15-31, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27814795

RESUMO

This review of special education and language-in-education policies at six sites in four countries (Canada, United States, United Kingdom, and Netherlands) aimed to determine the opportunities for bilingualism provided at school for children with developmental disabilities (DD). While research has demonstrated that children with DD are capable of learning more than one language (see Kay Raining Bird, Genesee, & Verhoeven, this issue), it was not clear whether recent policies reflect these findings. The review, conducted using the same protocol across sites, showed that special education policies rarely addressed second language learning explicitly. However, at all sites, the policies favoured inclusion and educational planning based on individual needs, and thus implied that students with DD would have opportunities for second language learning. The language-in-education policies occasionally specified the support individuals with special needs would receive. At some sites, policies and educational options provided little support for minority languages, a factor that could contribute to subtractive bilingualism. At others, we found stronger support for minority languages and optional majority languages: conditions that could be more conducive to additive bilingualism.


Assuntos
Deficiências do Desenvolvimento/psicologia , Terapia da Linguagem/métodos , Multilinguismo , Canadá , Comportamento de Escolha , Educação Inclusiva , Humanos , Reino Unido , Estados Unidos
11.
J Speech Lang Hear Res ; 59(5): 1099-1110, 2016 10 01.
Artigo em Inglês | MEDLINE | ID: mdl-27732719

RESUMO

Purpose: This study aimed to describe the development of inferential abilities of children age 3 to 6 years in a narrative using a dialogic reading task on an iPad. Method: Participants were 121 typically developing children, divided into 3 groups according to age range (3-4 years old, 4-5 years old, 5-6 years old). Total score of inferential comprehension, subscores by causal inference type targeting elements of the story grammar, and quality of response were examined across groups. Results: Inferential comprehension emerged early, from 3 to 4 years old, with considerable interindividual variability. Inferential comprehension scores increased significantly in relation to age, leading to developmental steps with regards to the type of causal inferences. The ability to infer the problem of the story, the internal response of a character, and predictions were easier starting at age 4 years. Then, the 5- to 6-year-olds were better able to infer the goal, the attempt to solve the problem, and the resolution. Last, between the ages of 3 and 6 years, children improved in terms of the quality of response they provided. Conclusion: This study addresses important gaps in our knowledge of inferential comprehension in young children and has implications for planning of early education in this realm.


Assuntos
Compreensão , Narração , Criança , Linguagem Infantil , Pré-Escolar , Feminino , Humanos , Masculino
12.
J Commun Disord ; 63: 63-78, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27485245

RESUMO

Children with DD must and do become bilingual, but the research reported in this special issue raises questions about equitable access to bilingual opportunities and provision of appropriate supports to ensure optimal bilingual growth in these children. The purpose of the present article was to apply the findings from our international collaboration to inform policy and practice on bilingualism in children with developmental disabilities (DD). To do this, we first overview the research presented in detail in other articles of this special issue: a narrative literature review, a review of site policies and practices related to special education and language education, a qualitative analysis of key informant interviews, and a quantitative analysis of surveys of practitioners. From these overviews emerge a complex set of contextual factors that impact bilingual development in children with DD. We then use the Bioecological Systems model of Bronfenbrenner and Morris (2007) and conceptual maps (C-maps) to examine the particular circumstances of three hypothetical children with DD who are in very different bilingual contexts. In so doing, areas of both positive and negative influence on lasting bilingualism are identified for each child. We end with recommendations for increasing access to and support for bilingualism in children with DD.


Assuntos
Deficiências do Desenvolvimento/psicologia , Modelos Educacionais , Multilinguismo , Humanos , Internacionalidade , Desenvolvimento da Linguagem
13.
J Commun Disord ; 58: 21-34, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26342290

RESUMO

PURPOSE: Describe social participation of a group of children with specific language impairment. METHOD: 26 parents of children with specific language impairment (SLI) aged from 5 to 13 years and 11 school professionals participated in the study. Data collection was performed with the adapted version for children aged from 5 to 13 years old of the Assessment of Life Habits (Fougeyrollas et al., 2001). The questionnaire encompasses 196 life habits, grouped in 12 dimensions: nutrition, fitness, personal care, communication, housing, mobility, responsibilities, interpersonal relationships, community life, education, work and recreation (Fougeyrollas, 2010). RESULTS: According to their parents and school professionals, children in this study carried out without difficulty life habits related to housing and mobility. However, they experienced difficulty with life habits related to interpersonal relationships, recreation and responsibilities, in addition to communication and education. CONCLUSIONS: Children with SLI are perceived by their parents and school professionals as having reduced social participation in many aspects of their daily life. Social participation should be considered as a major outcome when offering services in school to these children. This study proposes specific ways to help children with SLI.


Assuntos
Atividades Cotidianas/psicologia , Hábitos , Transtornos da Linguagem/psicologia , Idioma , Pais , Adolescente , Criança , Pré-Escolar , Comunicação , Feminino , Humanos , Relações Interpessoais , Masculino , Recreação , Instituições Acadêmicas , Inquéritos e Questionários
14.
Int J Lang Commun Disord ; 50(6): 737-49, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26212590

RESUMO

BACKGROUND: The ability to make inferences plays a crucial role in reading comprehension and the educational success of school-aged children. However, it starts to unfold much earlier than school entry and literacy. Given that it is likely to be targeted in speech language therapy, it would be useful for clinicians to have access to information about a developmental sequence of inferential comprehension. Yet, at this time, there is no clear proposition of the way in which this ability develops in young children prior to school entry. AIMS: To reduce the knowledge gap with regards to inferential comprehension in young children by conducting a scoping review of the literature. The two objectives of this research are: (1) to describe typically developing children's comprehension of causal inferences targeting elements of story grammar, with the goal of proposing milestones in the development of this ability; and (2) to highlight key elements of the methodology used to gather this information in a paediatric population. METHODS & PROCEDURES: A total of 16 studies from six databases that met the inclusion criteria were qualitatively analysed in the context of a scoping review. This methodological approach was used to identify common themes and gaps in the knowledge base to achieve the intended objectives. MAIN CONTRIBUTION: Results permit the description of key elements in the development of six types of causal inference targeting elements of story grammar in children between 3 and 6 years old. Results also demonstrate the various methods used to assess this ability in young children and highlight particularly interesting procedures for use with this younger population. CONCLUSIONS: These findings point to the need for additional studies to understand this ability better and to develop strategies to stimulate an evidence-based developmental sequence in children from an early age.


Assuntos
Compreensão , Formação de Conceito , Semântica , Criança , Pré-Escolar , Humanos , Terapia da Linguagem
15.
Dev Med Child Neurol ; 57(9): 872-9, 2015 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-25809143

RESUMO

AIM: The aim of this retrospective study was to assess the relationship between feeding-swallowing difficulties (FSDs) and later language impairments in children. METHOD: Retrospective analyses were carried out using the clinical files of 82 children with language impairments from a large urban rehabilitation center. Two subgroups of these children were established: children with motor impairments, referred to as the language impairment with motor impairment ('LI+MI') subgroup (n=23, mean age 4y 6mo, SD 8.7mo), and children without motor impairments, referred to as the language impairment without motor impairment ('LI-MI') subgroup (n=59, mean age 5y, SD 8mo). The prevalence of food selectivity, difficulties in sucking, salivary control issues, and food transition difficulties was extracted. Data were compared with a general population estimate of FSDs. RESULTS: FSDs were documented in 62% of the clinical files; 87% of these files were from the LI+MI subgroup and 53% were from the LI-MI subgroup. Among each subgroup of children with language impairments, the prevalence of FSDs was significantly higher than the general population estimate of 20% (LI+MI:χ(2) =55.965, df=1, p<0.001; LI-MI: χ(2) =32.807, df=1, p<0.001). Furthermore, the prevalence of FSDs was significantly higher in children with language impairments and motor impairments than in those with language impairments but without motor impairments (χ(2) =6.936, df=1, p<0.01). Both food transition difficulties (χ(2) =14.99, df=1, p<0.001) and salivary control issues (χ(2) =5.02, df=1, p=0.02) were more frequent in the LI+MI subgroup than in the LI-MI subgroup. Combinations of two or more FSDs were also more frequent in the LI+MI subgroup than in the LI-MI subgroup (χ(2) =4.19, df=1, p=0.04). INTERPRETATIONS: These findings suggest that early FSDs may be used as a potential marker for language impairment. However, larger prospective studies are needed to confirm this.


Assuntos
Transtornos de Deglutição/complicações , Transtornos do Desenvolvimento da Linguagem/diagnóstico , Transtornos do Desenvolvimento da Linguagem/etiologia , Distribuição de Qui-Quadrado , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Masculino , Transtornos dos Movimentos/etiologia , Reprodutibilidade dos Testes , Estudos Retrospectivos
16.
Augment Altern Commun ; 30(3): 187-99, 2014 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-25109228

RESUMO

While research on spoken language has a long tradition of studying and contrasting language production and comprehension, the study of graphic symbol communication has focused more on production than comprehension. As a result, the relationships between the ability to construct and to interpret graphic symbol sequences are not well understood. This study explored the use of graphic symbol sequences in children without disabilities aged 3;0 to 6;11 (years; months) (n=111). Children took part in nine tasks that systematically varied input and output modalities (speech, action, and graphic symbols). Results show that in 3- and 4-year-olds, attributing meaning to a sequence of symbols was particularly difficult even when the children knew the meaning of each symbol in the sequence. Similarly, while even 3- and 4-year-olds could produce a graphic symbol sequence following a model, transposing a spoken sentence into a graphic sequence was more difficult for them. Representing an action with graphic symbols was difficult even for 5-year-olds. Finally, the ability to comprehend graphic-symbol sequences preceded the ability to produce them. These developmental patterns, as well as memory-related variables, should be taken into account in choosing intervention strategies with young children who use AAC.


Assuntos
Desenvolvimento Infantil , Auxiliares de Comunicação para Pessoas com Deficiência , Comunicação , Compreensão , Desenvolvimento da Linguagem , Fala , Criança , Pré-Escolar , Feminino , Humanos , Masculino
17.
J Commun Disord ; 49: 42-54, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24630592

RESUMO

PURPOSE: The purpose of the study was to add to our knowledge of bilingual learning in children with Down syndrome (DS) using a syntactic bootstrapping task. METHOD: Four groups of children and youth matched on non-verbal mental age participated. There were 14 bilingual participants with DS (DS-B, mean age 12;5), 12 monolingual participants with DS (DS-M, mean age 10;10), 9 bilingual typically developing children (TD-B; mean age 4;1) and 11 monolingual typically developing children (TD-M; mean age 4;1). The participants completed a computerized syntactic bootstrapping task involving unfamiliar nouns and verbs. The syntactic cues employed were a for the nouns and ing for the verbs. RESULTS: Performance was better on nouns than verbs. There was also a main effect for group. Follow-up t-tests revealed that there were no significant differences between the TD-M and TD-B or between the DS-M and DS-B groups. However, the DS-M group performed more poorly than the TD-M group with a large effect size. Analyses at the individual level revealed a similar pattern of results. CONCLUSION: There was evidence that Down syndrome impacted performance; there was no evidence that bilingualism negatively affected the syntactic bootstrapping skills of individuals with DS. These results from a dynamic language task are consistent with those of previous studies that used static or product measures. Thus, the results are consistent with the position that parents should be supported in their decision to provide bilingual input to their children with DS. LEARNING OUTCOMES: Readers of this article will identify (1) research evidence regarding bilingual development in children with Down syndrome and (2) syntactic bootstrapping skills in monolingual and bilingual children who are typically developing or who have Down syndrome.


Assuntos
Síndrome de Down/fisiopatologia , Desenvolvimento da Linguagem , Multilinguismo , Aprendizagem Verbal/fisiologia , Criança , Pré-Escolar , Sinais (Psicologia) , Humanos
18.
Clin Linguist Phon ; 27(6-7): 540-52, 2013 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-23682594

RESUMO

Few studies report on therapy to improve language comprehension in children with specific language impairment (SLI). We address this gap by measuring the effect of a systematic intervention to improve inferential comprehension using dialogic reading tasks in conjunction with pre-determined questions and cues. Sixteen children with a diagnosis of SLI aged 4-6 participated in 10 weekly treatment sessions carried out by their regular therapists. Baseline and maintenance periods were also tabulated. Two experimental measures and a standardized test revealed that children's total scores and the quality of their responses post-treatment were better than those obtained pre-treatment. However, perhaps due to the use of non-equivalent probes, this change could not be interpreted solely as a significant effect of intervention. These results nevertheless suggest that a systematically designed intervention focusing on the comprehension of specific types of questions requiring inferencing and using a carefully scaffolded cueing strategy can be beneficial.


Assuntos
Compreensão , Transtornos do Desenvolvimento da Linguagem/reabilitação , Terapia da Linguagem/métodos , Fonoterapia/métodos , Criança , Pré-Escolar , Sinais (Psicologia) , Feminino , Humanos , Masculino , Leitura , Semântica
19.
Augment Altern Commun ; 28(2): 96-105, 2012 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-22670727

RESUMO

In order to understand a sequence of graphic symbols as sentences, one must not only recognize the meaning of individual symbols but also integrate their meaning together. In this study children without disabilities were asked to perform two tasks that presented sequences of graphics as stimuli but that differed in the need to treat the symbols as a sentence (i.e., with evidence of relationships among the individual symbols): a "reading" task (transpose the symbol sequence into speech), and an act-out task (demonstrate the meaning of the symbol sequences using puppets). The participants, aged 3 (n=18), 4 (n=36), 5 (n=27), and 6 (n=23) years, all succeeded on the reading task, but the younger groups were much less successful than the older groups on the act-out task. The children were more likely to pass the act-out task if they used conjugated rather than infinitive verb forms in their spoken responses on the reading task. In the younger age groups, children who used conjugated verb forms had higher receptive vocabulary scores. The findings suggest that being able to reproduce a sequence of symbols does not guarantee that the symbols are treated as a sentence. The inclusion in the study of children who were able to respond using speech, permitted observation of two types of responses (conjugated versus infinitive verb forms) that revealed different levels of understanding of graphic symbol sequences.


Assuntos
Desenvolvimento da Linguagem , Leitura , Fala , Vocabulário , Fatores Etários , Criança , Pré-Escolar , Feminino , Humanos , Masculino , Estatísticas não Paramétricas
20.
J Speech Lang Hear Res ; 54(2): 580-97, 2011 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-21081674

RESUMO

PURPOSE: Research on the diagnostic accuracy of different language measures has focused primarily on English. This study examined the sensitivity and specificity of a range of measures of language knowledge and language processing for the identification of primary language impairment (PLI) in French-speaking children. Because of the lack of well-documented language measures in French, it is difficult to accurately identify affected children, and thus research in this area is impeded. METHOD: The performance of 14 monolingual French-speaking children with confirmed, clinically identified PLI (M = 61.4 months of age, SD = 7.2 months) on a range of language and language processing measures was compared with the performance of 78 children with confirmed typical language development (M age = 58.9 months, SD = 5.7). These included evaluations of receptive vocabulary, receptive grammar, spontaneous language, narrative production, nonword repetition, sentence imitation, following directions, rapid automatized naming, and digit span. Sensitivity, specificity, and likelihood ratios were determined at 3 cutoff points: (a) -1 SD, (b) -1.28 SD, and (b) -2 SD below mean values. Receiver operator characteristic curves were used to identify the most accurate cutoff for each measure. RESULTS: Significant differences between the PLI and typical language development groups were found for the majority of the language measures, with moderate to large effect sizes. The measures differed in their sensitivity and specificity, as well as in which cutoff point provided the most accurate decision. Ideal cutoff points were in most cases between the mean and -1 SD. Sentence imitation and following directions appeared to be the most accurate measures. CONCLUSIONS: This study provides evidence that standardized measures of language and language processing provide accurate identification of PLI in French. The results are strikingly similar to previous results for English, suggesting that in spite of structural differences between the languages, PLI in both languages involves a generalized language delay across linguistic domains, which can be identified in a similar way using existing standardized measures.


Assuntos
Linguagem Infantil , Transtornos do Desenvolvimento da Linguagem/diagnóstico , Testes de Linguagem/normas , Idioma , Pré-Escolar , Feminino , Humanos , Modelos Logísticos , Masculino , Quebeque , Reprodutibilidade dos Testes , Sensibilidade e Especificidade
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