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Neural patterns elicited by sentence processing uniquely characterize typical development, SLI recovery, and SLI persistence / Eileen HAEBIG in Journal of Neurodevelopmental Disorders, 9-1 (December 2017)
[article]
Titre : Neural patterns elicited by sentence processing uniquely characterize typical development, SLI recovery, and SLI persistence Type de document : Texte imprimé et/ou numérique Auteurs : Eileen HAEBIG, Auteur ; C. WEBER, Auteur ; L. B. LEONARD, Auteur ; P. DEEVY, Auteur ; J. B. TOMBLIN, Auteur Article en page(s) : p.22 Langues : Anglais (eng) Mots-clés : Event-related brain potentials Language trajectories N400 P600 Sentence processing Specific language impairment Index. décimale : PER Périodiques Résumé : BACKGROUND: A substantial amount of work has examined language abilities in young children with specific language impairment (SLI); however, our understanding of the developmental trajectory of language impairment is limited. Along with studying the behavioral changes that occur across development, it is important to examine the neural indices of language processing for children with different language trajectories. The current study sought to examine behavioral and neural bases of language processing in adolescents showing three different trajectories: those with normal language development (NL), those exhibiting persistent SLI (SLI-Persistent), and those with a history of SLI who appear to have recovered (SLI-Recovered). METHODS: Through a sentence judgment task, we examined semantic and syntactic processing. Adolescents judged whether or not each sentence was semantically and syntactically correct. Stimuli consisted of naturally spoken sentences that were either correct, contained a semantic verb error, or contained a syntactic verb agreement error. Verb agreement errors consisted of omission and commission violations of the third-person singular -s. Behavioral button-press responses and electroencephalographic recordings were collected. Behavioral judgments and mean amplitude of the N400 and P600 components were examined. RESULTS: Adolescents in the SLI-Persistent group had lower sentence judgment accuracy overall, relative to the NL and SLI-Recovered groups. Accuracy in judging omission and commission syntactic errors were marginally different, with marginally lower accuracy for commission errors. All groups demonstrated an N400 component elicited by semantic violations. However, adolescents in the SLI-Persistent group demonstrated a less robust P600 component for syntactic violations. Furthermore, adolescents in the SLI-Recovered group exhibited a similar neural profile to the NL group for the semantic and syntactic omission violations. However, a unique profile with initial negativity was observed in the SLI-Recovered group in the commission violation condition. CONCLUSIONS: Adolescents with persistent language impairment continue to demonstrate delays in language processing at the behavioral and neural levels. Conversely, the adolescents in the SLI-Recovered group appear to have made gains in language processing skills to overcome their initial impairments. However, our findings suggest that the adolescents in the SLI-Recovered group may have compensatory processing strategies for some aspects of language, as evidenced by a unique event-related potential profile. En ligne : http://dx.doi.org/10.1186/s11689-017-9201-1 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=350
in Journal of Neurodevelopmental Disorders > 9-1 (December 2017) . - p.22[article] Neural patterns elicited by sentence processing uniquely characterize typical development, SLI recovery, and SLI persistence [Texte imprimé et/ou numérique] / Eileen HAEBIG, Auteur ; C. WEBER, Auteur ; L. B. LEONARD, Auteur ; P. DEEVY, Auteur ; J. B. TOMBLIN, Auteur . - p.22.
Langues : Anglais (eng)
in Journal of Neurodevelopmental Disorders > 9-1 (December 2017) . - p.22
Mots-clés : Event-related brain potentials Language trajectories N400 P600 Sentence processing Specific language impairment Index. décimale : PER Périodiques Résumé : BACKGROUND: A substantial amount of work has examined language abilities in young children with specific language impairment (SLI); however, our understanding of the developmental trajectory of language impairment is limited. Along with studying the behavioral changes that occur across development, it is important to examine the neural indices of language processing for children with different language trajectories. The current study sought to examine behavioral and neural bases of language processing in adolescents showing three different trajectories: those with normal language development (NL), those exhibiting persistent SLI (SLI-Persistent), and those with a history of SLI who appear to have recovered (SLI-Recovered). METHODS: Through a sentence judgment task, we examined semantic and syntactic processing. Adolescents judged whether or not each sentence was semantically and syntactically correct. Stimuli consisted of naturally spoken sentences that were either correct, contained a semantic verb error, or contained a syntactic verb agreement error. Verb agreement errors consisted of omission and commission violations of the third-person singular -s. Behavioral button-press responses and electroencephalographic recordings were collected. Behavioral judgments and mean amplitude of the N400 and P600 components were examined. RESULTS: Adolescents in the SLI-Persistent group had lower sentence judgment accuracy overall, relative to the NL and SLI-Recovered groups. Accuracy in judging omission and commission syntactic errors were marginally different, with marginally lower accuracy for commission errors. All groups demonstrated an N400 component elicited by semantic violations. However, adolescents in the SLI-Persistent group demonstrated a less robust P600 component for syntactic violations. Furthermore, adolescents in the SLI-Recovered group exhibited a similar neural profile to the NL group for the semantic and syntactic omission violations. However, a unique profile with initial negativity was observed in the SLI-Recovered group in the commission violation condition. CONCLUSIONS: Adolescents with persistent language impairment continue to demonstrate delays in language processing at the behavioral and neural levels. Conversely, the adolescents in the SLI-Recovered group appear to have made gains in language processing skills to overcome their initial impairments. However, our findings suggest that the adolescents in the SLI-Recovered group may have compensatory processing strategies for some aspects of language, as evidenced by a unique event-related potential profile. En ligne : http://dx.doi.org/10.1186/s11689-017-9201-1 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=350 Levels of Text Comprehension in Children with Autism Spectrum Disorders (ASD): The Influence of Language Phenotype / Rebecca LUCAS in Journal of Autism and Developmental Disorders, 44-11 (November 2014)
[article]
Titre : Levels of Text Comprehension in Children with Autism Spectrum Disorders (ASD): The Influence of Language Phenotype Type de document : Texte imprimé et/ou numérique Auteurs : Rebecca LUCAS, Auteur ; Courtenay F. NORBURY, Auteur Article en page(s) : p.2756-2768 Langues : Anglais (eng) Mots-clés : Autism spectrum disorder Language impairment Sentence processing Text comprehension Index. décimale : PER Périodiques Résumé : Many children with autism spectrum disorders (ASD) have reading comprehension difficulties, but the level of processing at which comprehension is most vulnerable and the influence of language phenotype on comprehension skill is currently unclear. We explored comprehension at sentence and passage levels across language phenotypes. Children with ASD and age-appropriate language skills (n = 25) demonstrated similar syntactic and semantic facilitation to typically developing peers. In contrast, few children with ASD and language impairments (n = 25) could read beyond the single word level. Those who could read sentences benefited from semantic coherence, but were less sensitive to syntactic coherence. At the passage level, the strongest predictor of comprehension was vocabulary knowledge. This emphasizes that the intimate relationship between language competence and both decoding skill and comprehension is evident at the sentence, as well as the passage level, for children with ASD. En ligne : http://dx.doi.org/10.1007/s10803-014-2133-7 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=241
in Journal of Autism and Developmental Disorders > 44-11 (November 2014) . - p.2756-2768[article] Levels of Text Comprehension in Children with Autism Spectrum Disorders (ASD): The Influence of Language Phenotype [Texte imprimé et/ou numérique] / Rebecca LUCAS, Auteur ; Courtenay F. NORBURY, Auteur . - p.2756-2768.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 44-11 (November 2014) . - p.2756-2768
Mots-clés : Autism spectrum disorder Language impairment Sentence processing Text comprehension Index. décimale : PER Périodiques Résumé : Many children with autism spectrum disorders (ASD) have reading comprehension difficulties, but the level of processing at which comprehension is most vulnerable and the influence of language phenotype on comprehension skill is currently unclear. We explored comprehension at sentence and passage levels across language phenotypes. Children with ASD and age-appropriate language skills (n = 25) demonstrated similar syntactic and semantic facilitation to typically developing peers. In contrast, few children with ASD and language impairments (n = 25) could read beyond the single word level. Those who could read sentences benefited from semantic coherence, but were less sensitive to syntactic coherence. At the passage level, the strongest predictor of comprehension was vocabulary knowledge. This emphasizes that the intimate relationship between language competence and both decoding skill and comprehension is evident at the sentence, as well as the passage level, for children with ASD. En ligne : http://dx.doi.org/10.1007/s10803-014-2133-7 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=241 Investigating the Use of World Knowledge During On-line Comprehension in Adults with Autism Spectrum Disorder / Philippa L. HOWARD in Journal of Autism and Developmental Disorders, 47-7 (July 2017)
[article]
Titre : Investigating the Use of World Knowledge During On-line Comprehension in Adults with Autism Spectrum Disorder Type de document : Texte imprimé et/ou numérique Auteurs : Philippa L. HOWARD, Auteur ; Simon P. LIVERSEDGE, Auteur ; Valerie BENSON, Auteur Article en page(s) : p.2039-2053 Langues : Anglais (eng) Mots-clés : Autism spectrum disorder Reading Sentence processing Semantics World knowledge Plausibility Index. décimale : PER Périodiques Résumé : The on-line use of world knowledge during reading was examined in adults with autism spectrum disorder (ASD). Both ASD and typically developed adults read sentences that included plausible, implausible and anomalous thematic relations, as their eye movements were monitored. No group differences in the speed of detection of the anomalous violations were found, but the ASD group showed a delay in detection of implausible thematic relations. These findings suggest that there are subtle differences in the speed of world knowledge processing during reading in ASD. En ligne : https://doi.org/10.1007/s10803-017-3129-x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=313
in Journal of Autism and Developmental Disorders > 47-7 (July 2017) . - p.2039-2053[article] Investigating the Use of World Knowledge During On-line Comprehension in Adults with Autism Spectrum Disorder [Texte imprimé et/ou numérique] / Philippa L. HOWARD, Auteur ; Simon P. LIVERSEDGE, Auteur ; Valerie BENSON, Auteur . - p.2039-2053.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 47-7 (July 2017) . - p.2039-2053
Mots-clés : Autism spectrum disorder Reading Sentence processing Semantics World knowledge Plausibility Index. décimale : PER Périodiques Résumé : The on-line use of world knowledge during reading was examined in adults with autism spectrum disorder (ASD). Both ASD and typically developed adults read sentences that included plausible, implausible and anomalous thematic relations, as their eye movements were monitored. No group differences in the speed of detection of the anomalous violations were found, but the ASD group showed a delay in detection of implausible thematic relations. These findings suggest that there are subtle differences in the speed of world knowledge processing during reading in ASD. En ligne : https://doi.org/10.1007/s10803-017-3129-x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=313