带有语言前单侧聋和耳植入器的儿童对语音暗示的感知和言语中的言语
Tine Arras1, Laura Rachman2, Astrid van Wieringen3
1ExpORL, Dept. Neurosciences, KU Leuven, Belgium; Cochlear Technology Centre, Belgium.
Hearing research
|November 15, 2024
概括
患有单侧耳聋 (SSD) 和耳植入物 (CI) 的儿童与他们的CI有效地使用语音暗示,如基本频率 (F0) 和声道长度 (VTL),但他们的感知模式处于CI儿童和成人之间.
科学领域:
- 听觉神经科学 听觉神经科学
- 语音感知 语音感知
- 耳植入器是什么意思
背景情况:
- 语音线索 (基本频率[F0],声道长度[VTL]) 对于语音感知至关重要.
- 耳植入物 (CI) 用户经常与语音暗示感知斗争,特别是患有语后听力损失的成年人.
- 早期植入IC的儿童通常表现出比成年人更好的语音暗示感知.
研究的目的:
- 调查早期植入儿童的语音暗示感知和使用,这些儿童患有语言前单侧聋 (SSD+CI).
- 为了比较SSD+CI儿童的表现与他们的正常听力 (NH) 耳朵,CI儿童和CI成人.
- 了解SSD+CI儿童如何弥合CI儿童和成年人之间的感知差距.
主要方法:
- 这项研究包括9名早期植入的儿童,他们患有语言前的SSD.
- 三个实验评估了F0和VTL歧视,语音性别分类和语音内语音感知.
- 结果在SSD+CI组的CI耳和NH耳之间进行了比较,并与CI儿童和NH个体的数据进行了比较.
主要成果:
- SSD+CI儿童的CI与他们的NH耳相比,VTL检测值较差,但两耳的F0感知相似.
- 用CI检测的VTL和F0检测值与双边植入CI儿童的值相似.
- 对于语音性别分类,SSD+CI儿童更多地依赖F0线索,类似于CI成年人.
- 在SSD+CI儿童中,F0和VTL差异对语音知觉的益处是有限的,反映了CI成年人的表现.
结论:
- 早期植入SSD+CI的儿童有效地利用他们的CI来感知语音暗示,尽管他们的听觉耳朵正常.
- 他们对语音暗示的感知模式是中间的,更像是CI成年人,而不是CI儿童.
- 诸如儿童神经可塑性,仅仅依赖CI的有限依赖,以及占主导地位的声学表示等因素可能解释了这些发现.
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