Contingent Imitation in Spoken Language Acquisition: Minimally Verbal Children With Autism Spectrum Disorder

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  • 自閉スペクトラム症児の音声言語に対する随伴模倣を用いた介入の効果――遊び場面における発声・発話機会設定の有無に関する検討――
  • ジヘイスペクトラムショウジ ノ オンセイ ゲンゴ ニ タイスル ズイハン モホウ オ モチイタ カイニュウ ノ コウカ : アソビ バメン ニ オケル ハッセイ ・ ハツワ キカイ セッテイ ノ ウム ニ カンスル ケントウ

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Abstract

<p>Study Objective: The present study examined whether an intervention using contingent imitation and setting opportunities to elicit vocalization-speech increased vocalization-speech, vocal imitation, and meaningful words in 2 boys with autism spectrum disorder (ASD), and whether the increases in behavior would be maintained. Whether the children’s vocalization-speech and vocal imitation would be maintained after parent-implemented interventions was also examined. Design: Multiple baseline design across participants. Participants: 2 children with autism spectrum disorder (Child A, Child B). Settings: Child A was observed in his home, and Child B was observed in a playroom at the university. Intervention: After getting the child’s attention, the therapist presented a speech model. If the child uttered a vocalization, the therapist imitated the child’s vocalization-speech or vocal imitation. A similar procedure was implemented in the sessions in which different toys were used and in the parent-implemented sessions. Measures: The percentage of vocalization-speech and vocal imitation, and the number of meaningful words. Results: Both children’s vocalization-speech, vocal imitation, and meaningful words increased after the intervention using contingent imitation. This behavior was also maintained in the parent-implemented sessions. Conversely, there was no change in the condition in which the therapist only imitated the child’s spontaneous vocalization-speech, barring the result of child A’s vocalization-speech. Conclusion: The results of the present study suggest that implementing opportunities to elicit vocalization and contingent imitation promote vocal imitation in minimally verbal children with autism spectrum disorder.</p>

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