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Atypical Brain Responses to Reward Cues in Autism as Revealed by Event-Related Potentials / Gregor KOHLS in Journal of Autism and Developmental Disorders, 41-11 (November 2011)
[article]
Titre : Atypical Brain Responses to Reward Cues in Autism as Revealed by Event-Related Potentials Type de document : Texte imprimé et/ou numérique Auteurs : Gregor KOHLS, Auteur ; Judith PELTZER, Auteur ; Martin SCHULTE-RUTHER, Auteur ; Inge KAMP-BECKER, Auteur ; Helmut REMSCHMIDT, Auteur ; Beate HERPERTZ-DAHLMANN, Auteur ; Kerstin KONRAD, Auteur Année de publication : 2011 Article en page(s) : p.1523-1533 Langues : Anglais (eng) Mots-clés : Social reward Monetary reward Motivation Autism spectrum disorders Event-related brain potentials P3 Go/no-go task Index. décimale : PER Périodiques Résumé : Social motivation deficit theories suggest that children with autism do not properly anticipate and appreciate the pleasure of social stimuli. In this study, we investigated event-related brain potentials evoked by cues that triggered social versus monetary reward anticipation in children with autism. Children with autism showed attenuated P3 activity in response to cues associated with a timely reaction to obtain a reward, irrespective of reward type. We attribute this atypical P3 activity in response to reward cues as reflective of diminished motivated attention to reward signals, a possible contributor to reduced social motivation in autism. Thus, our findings suggest a general reward processing deficit rather than a specific social reward dysfunction in autism. En ligne : http://dx.doi.org/10.1007/s10803-011-1177-1 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=147
in Journal of Autism and Developmental Disorders > 41-11 (November 2011) . - p.1523-1533[article] Atypical Brain Responses to Reward Cues in Autism as Revealed by Event-Related Potentials [Texte imprimé et/ou numérique] / Gregor KOHLS, Auteur ; Judith PELTZER, Auteur ; Martin SCHULTE-RUTHER, Auteur ; Inge KAMP-BECKER, Auteur ; Helmut REMSCHMIDT, Auteur ; Beate HERPERTZ-DAHLMANN, Auteur ; Kerstin KONRAD, Auteur . - 2011 . - p.1523-1533.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 41-11 (November 2011) . - p.1523-1533
Mots-clés : Social reward Monetary reward Motivation Autism spectrum disorders Event-related brain potentials P3 Go/no-go task Index. décimale : PER Périodiques Résumé : Social motivation deficit theories suggest that children with autism do not properly anticipate and appreciate the pleasure of social stimuli. In this study, we investigated event-related brain potentials evoked by cues that triggered social versus monetary reward anticipation in children with autism. Children with autism showed attenuated P3 activity in response to cues associated with a timely reaction to obtain a reward, irrespective of reward type. We attribute this atypical P3 activity in response to reward cues as reflective of diminished motivated attention to reward signals, a possible contributor to reduced social motivation in autism. Thus, our findings suggest a general reward processing deficit rather than a specific social reward dysfunction in autism. En ligne : http://dx.doi.org/10.1007/s10803-011-1177-1 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=147 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