交互式语境对患有脱节症的人口语音特征的影响:初步研究
Elizabeth Krajewski1, Jimin Lee1, Navin Viswanathan1
1Department of Communication Sciences and Disorders, The Pennsylvania State University, University Park.
American journal of speech-language pathology
|May 29, 2024
概括
与单独任务相比,患有脱节症的个体在交互式语音任务中表现出较好的元音声学对比度. 在互动设置中,元音的语音调整也很明显.
科学领域:
- 语音语言病理学 语言病理学
- 神经性沟通障碍 神经性沟通障碍
- 声学语音学的声音学
背景情况:
- 发病症,通常是由于神经疾病,如肌缩性侧面硬化症 (ALS),可以显著影响语音可理解性.
- 了解失联症患者如何在不同的沟通环境中修改他们的言语对于开发有效的干预措施至关重要.
研究的目的:
- 在交互式和单独语音任务中比较发音障碍发言者在交互式和单独语音任务中产生的元音段的时间和光谱声学对比.
- 在患有脱节症的个体中,研究交互式和单独说话条件之间的语音调整对元音生成的差异.
主要方法:
- 九名患有ALS二次性失联症的个体在/h/-元音-/d/单词中产生了目标元音.
- 声母的声学特征,包括持续时间和光谱距离 (F1/F2欧几里德距离),在三个任务中进行了分析:交互式,单独习惯性和单独清晰的演讲.
- 根据声学特征评估了元音分类的准确性.
主要成果:
- 与单独任务相比,在交互式任务中,长和短元音之间的时间对比度明显更大.
- 在交互式任务中,与习惯单独演讲相比,某些相邻的母音对之间的光谱距离得到了增强.
- 当参与者参与交互式语音任务时,元音分类的准确性最高.
结论:
- 与单独语音生产相比,患有脱节症的个体在结构化交互期间在母音段中表现出增加的声学对比度.
- 发音修改声母发音不同于互动和单独说话的条件,对于患有脱节症的人来说.
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