文の黙読課題遂行中の事象関連電位からみた自閉症スペクトラム障害児の意味処理過程  [in Japanese] Event-related Potentials on Semantic Processing for Sentence Comprehension in Children with Autism Spectrum Disorders  [in Japanese]

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Abstract

<p>本研究では,自閉症スペクトラム障害 (ASD) 児における意味処理過程について,文の黙読課題遂行中の事象関連電位 (ERP),並びに文末語の書き換えを求めた記述テストの正誤判断を指標として検討を行った。文末語に対するERPの分析を行ったところ,ASD群9名ではN400振幅が定型発達 (TD) 群6名と比較して有意に小さかった。しかし,記述テストでは両群の正答率に差が認められなかった。以上の結果から,ASD児は,行動指標上はTD児と同様に正誤の判断を行うことができるが,N400に反映される意味的逸脱に関する脳処理に特異性があることが推察される。</p>

<p>This study investigated the semantic processing of children with autism spectrum disorder (ASD). Event-related potentials (ERP) with children performing silent reading tasks were analyzed. Furthermore, we used descriptive tests to require participants to answer whether a sentence was correct and to correctly rewrite the incorrect sentences. According to an analysis of ERP, the ASD group demonstrated significantly smaller N400 amplitudes compared with the typically developing (TD) group. However, no significant differences between the groups were observed in the percentage of correct answers on descriptive tests. These results suggest that children with ASD have a peculiarity of neural processing for semantically incongruent words, although they can determine whether sentences are correct or incorrect, which is similar to the TD children.</p>

Journal

  • Japanese Journal of Physiological Psychology and Psychophysiology

    Japanese Journal of Physiological Psychology and Psychophysiology 33(3), 215-222, 2015

    Japanese Society for Physiological Psychology and Psychophysiology

Codes

  • NII Article ID (NAID)
    130005439913
  • NII NACSIS-CAT ID (NCID)
    AN10091236
  • Text Lang
    JPN
  • ISSN
    0289-2405
  • NDL Article ID
    028049248
  • NDL Call No.
    Z19-1537
  • Data Source
    NDL  J-STAGE 
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