在童年语音失调时的单词级前奏声学的声学测量:初步验证研究
Meghan Littlejohn1, Edwin Maas1
1Department of Communication Sciences and Disorders, Temple University, Philadelphia, PA.
American journal of speech-language pathology
|July 15, 2025
概括
声学测量对诊断儿童语音失调 (CAS) 有希望,特别是在评估表情和词汇压力产生时. 需要进一步的研究来确认它们在临床实践中的有效性.
科学领域:
- 语音语言病理学 语言病理学
- 声学语音学的声音学.
- 儿童的沟通障碍 儿童的沟通障碍
背景情况:
- 儿童语音失调 (CAS) 诊断依赖于对核心特征的临床判断,如不一致的错误和受损的表达方式.
- 目前的CAS诊断方法有局限性,声学措施可以帮助解决这些局限性.
研究的目的:
- 为了提供初步有效性证据,为9个声学测量在儿童中与CAS的prosody.
- 用声学分析检查诊断出CAS的儿童的词汇压力产生.
主要方法:
- 对33名儿童 (4-8岁) 的回顾性研究,CAS模仿双音节单词.
- 收集了九个声学度量,包括变化指数,应力比率和音节持续时间.
- 评估结构有效性 (压力模式,年龄,严重程度) 和融合有效性 (与其他声学和临床测量相关性).
主要成果:
- 普罗索迪的声学测量在压力模式之间有显著差异.
- 六项测量结果显示,强弱词的CAS严重性与中度相关性,但强弱词没有.
- 患有CAS的儿童表现出词汇压力产生受损,特别是在弱强词中区分压力和非压力音节.
结论:
- 该研究提供了合格的初步支持声学测量的有效性在CAS中评估prosody.
- 研究结果表明,患有CAS的儿童在产生词汇压力方面遇到困难.
- 建议对更大,更多样化的样本进行进一步的前性研究,以验证这些声学测量.
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