带有耳植入的法语儿童和典型听力儿童的鼻腔/口腔元音感知
Sophie Fagniart1,2, Véronique Delvaux1,2,3,4, Bernard Harmegnies2,3
1Language Sciences and Metrology Unit, University of Mons, Belgium.
概括
带有耳植入器 (CI) 的儿童在母音鼻音感知方面表现出挑战,但通过使用特定的声学线索来补偿. 早期的植入和语音练习对他们的表现产生了积极的影响.
科学领域:
- 语音感知研究 语音感知研究
- 听觉神经科学 听觉神经科学
- 儿科听力学 儿科听力学
背景情况:
- 耳植入物 (CIs) 提供听觉接入,但在处理复杂的声学特征方面可能存在局限性.
- 法语的元音鼻度依赖于精细的光谱分辨率,这对CI用户来说是一个潜在的挑战.
- 了解这些挑战对于优化CI儿童的听力康复至关重要.
研究的目的:
- 调查与典型听力儿童相比,患有CI的法语儿童对母音鼻音的感知.
- 为了确定CI声学限制对处理鼻度的影响,这需要精细的光谱分辨率.
- 检查影响表现的因素,包括年龄,植入史和使用暗示语音.
主要方法:
- 对13名CI儿童和25名典型听力儿童 (4-12岁) 进行了法语鼻声和口声元音的识别和区分任务.
- 利用了鼻口音母音对比的语音和语音配对.
- 进行了对刺激的声学分析,并将它们与感知表现联系起来.
主要成果:
- 患有CI的孩子的表现低于通常听力同龄人,但高于机会 (>80%).
- CI使用者的常见错误包括用声学上相似的口语元音替换.
- 在CI组中观察到语音暗示和早期植入的积极影响.
结论:
- 患有CI的儿童在光谱分辨率线索上遇到困难,但可以使用其他声学线索来补偿.
- 有效的补偿表明CI用户可以利用时间解析线索.
- 调查结果强调了考虑CI用户个体声学暗示的使用的重要性.
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