在使用F0扩展来表达对比焦点时,使用耳植入器的普通话儿童面临挑战
Ping Tang1, Nan Xu Rattanasone2, Katherine Demuth2
1School of Foreign Studies, Nanjing University of Science and Technology, Nanjing, Jiangsu, China.
Ear and hearing
|May 21, 2024
概括
带有耳植入器 (CI) 的普通话儿童在产生对比焦点方面扎,使用持续时间但不有效地提升. 早期植入可能会改善焦点生产,突出需要语言治疗超越单词级音调.
科学领域:
- 语音和听力科学 语言和听力科学
- 语言学的语言学.
- 听觉神经科学 听觉神经科学
背景情况:
- 耳植入物 (CI) 不能有效地传输基本频率 (F0) 信息,这给患有CI的儿童在感知和产生语音表达方面带来了挑战.
- 在普通话中,F0对于词汇语调意义和发言级别对比焦点至关重要,这涉及扩大F0范围和持续时间.
- 虽然早期CI植入有助于音调获取,但其对产生像对比焦点这样的发言级别表达方式的影响尚不清楚.
研究的目的:
- 与典型听力同龄人相比,研究CIs的普通话儿童中对比焦点生产的准确性.
- 为了确定早期植入是否有利于在患有CI的儿童中产生对比焦点.
- 分析ICS儿童用来标记对比焦点的声学模式 (F0范围,持续时间).
主要方法:
- 对比55名普通话 (3-7岁) 儿童的CI与55名年龄相匹配的典型听力 (TH) 儿童.
- 孩子们制作了名词短语,并没有对比的焦点;成年听众对制作进行了感知评分.
- 对"正确"制作的声学分析检查了焦点和焦点后音节的F0范围和持续时间.
主要成果:
- 与TH儿童 (84%) 相比,具有CI的儿童在产生对比焦点时的准确性 (38%) 显着较低.
- 对于焦点音节,TH儿童使用了扩展的F0范围和长时间,对于焦点音节,使用了减少的F0和短时间.
- 患有CI的儿童产生了长时间的焦点音节,但没有扩大F0范围,尽管焦点后音节模式与TH儿童相似. 早期植入与更好的焦点生产和F0范围的使用相关.
结论:
- 汉语说话的CI儿童在使用扩大F0范围进行对比焦点时遇到困难,这可能是由于CI对F0传播的限制.
- 包括对比焦点在内的发言级别的表达方式,需要为患有CIs的儿童进行语音补救.
- 对于这些儿童来说,在词和发言层面上对F0功能获得的早期识别和干预至关重要.
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