Lexical and Affective Prosody in Children With High-Functioning Autism
Lexical and Affective Prosody in Children With High-Functioning Autism
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DOI：
10.1044/1092-4388(2009/08-0127
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发表时间：
2010-06-01
影响因子：
2.6
通讯作者：
Tager-Flusberg, Helen
中科院分区：
文献类型：
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作者：
Grossman, Ruth B.;Bemis, Rhyannon H.;Tager-Flusberg, Helen
目的：探讨高功能自闭症青少年对词汇重音的感知、产生和情感韵律的加工。我们假设保留处理的词汇和情感韵律，但非典型的词汇韵律production.Method：16名儿童HFA和15个典型的发展（TD）的同龄人参加了3个实验，探讨了以下内容：（a）感知的情感韵律（实验1），（B）词汇重音知觉（实验2），（c）词汇重音生产（实验3）。在实验1中，参与者标记经过低通过滤的悲伤、快乐和中性口语句子，以消除言语内容。在实验2中，受试者消除歧义的单词意义的基础上词汇的压力（热狗与热狗）。在实验3中，参与者在句子完成任务中产生这些单词。通过声学测量来分析制作。结果：准确性水平没有显示出组间差异。具有HFA的参与者可以根据词汇重音从过滤的句子中确定情感并消除歧义。他们产生了适当分化的词汇压力模式，但表现出的长时间生产，表明自然韵律production.Conclusions能力降低：儿童HFA是他们的TD同龄人在词汇压力和情感韵律的接受任务。韵律生产是漫长的，尽管准确区分词汇重音模式。未来的研究应该使用更大的样本和自发与诱导的生产。
Purpose: To investigate the perception and production of lexical stress and processing of affective prosody in adolescents with high-functioning autism (HFA). We hypothesized preserved processing of lexical and affective prosody but atypical lexical prosody production.Method: Sixteen children with HFA and 15 typically developing (TD) peers participated in 3 experiments that examined the following: (a) perception of affective prosody (Experiment 1), (b) lexical stress perception (Experiment 2), and (c) lexical stress production (Experiment 3). In Experiment 1, participants labeled sad, happy, and neutral spoken sentences that were low-pass filtered, to eliminate verbal content. In Experiment 2, participants disambiguated word meanings based on lexical stress (HOTdog vs. hot DOG). In Experiment 3, participants produced these words in a sentence completion task. Productions were analyzed with acoustic measures.Results: Accuracy levels showed no group differences. Participants with HFA could determine affect from filtered sentences and disambiguate words on the basis of lexical stress. They produced appropriately differentiated lexical stress patterns but demonstrated atypically long productions, indicating reduced ability in natural prosody production.Conclusions: Children with HFA were as capable as their TD peers in receptive tasks of lexical stress and affective prosody. Prosody productions were atypically long, despite accurate differentiation of lexical stress patterns. Future research should use larger samples and spontaneous versus elicited productions.