在噪音中建模语音产生和自我感知:理解非声创性声高功能的伦巴德效应)
Christian Castro1, Juan P Cortés2, Lucía Z Rivera2
1Rehabilitation Sciences Institute, School of Speech Therapy, Faculty of Rehabilitation Sciences, Universidad Andres Bello, Santiago, 7591538, Chile.
The Journal of the Acoustical Society of America
|December 6, 2024
概括
患有非音声创伤性声高功能 (NPVH) 的人在噪音中说话时,与感觉运动适应性作斗争. 它们的适应速度较慢,这表明听觉和体感反处理发生了变化.
科学领域:
- 语音科学 语言科学
- 神经科学是一个神经科学.
- 生物医学工程 生物医学工程
背景情况:
- 感官运动适应对于清晰的言语至关重要.
- 非音声创伤性声高功能 (NPVH) 损害了对噪音的适应 (伦巴德效应).
- 听觉和体感反在这种适应中的作用仍然不清楚.
研究的目的:
- 研究NPVH患者在噪音中说话时的感觉运动适应力学.
- 使用SimpleDIVA模型分析典型和NPVH声音的适应性.
- 阐明听觉和体感反在NPVH中的贡献.
主要方法:
- 一个三参数数学模型 (SimpleDIVA) 被调整.
- 参与者 (典型的声音和NPVH) 在基线,龙巴德语 (噪音) 和恢复条件下发出音节.
- 使用SimpleDIVA模型分析了语音适应.
主要成果:
- 在噪音暴露后,NPVH参与者未能恢复到基线水平.
- 简单DIVA模型表明,NPVH中的feedforward学习率有所降低.
- 与对照组相比,NPVH受试者表现出体感反的增加减少.
结论:
- 在噪音下,NPVH可能涉及减少对体感反的依赖,在噪音下发言过程中.
- 患有NPVH的个体可能需要更长的时间来调整噪音暴露后的运动指令.
- 这些发现突出了改善NPVH语音适应的潜在治疗目标.
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