6个月前的语音特征抽象:在多个辅音中对口音位置的模态识别
Eylem Altuntas1, Catherine T Best1, Marina Kalashnikova1,2,3
1MARCS Institute for Brain, Behaviour, and Development, Western Sydney University, Sydney, Australia.
Developmental science
|January 15, 2025
概括
只有4-6个月的婴儿可以抽象语音,这挑战了语言调和是第一位的观念. 这种早期的语音特征抽象表明了语言获取的不同发展时间表.
科学领域:
- 发展心理学 发展心理学
- 语言学的语言学.
- 认知科学 认知科学
背景情况:
- 传统观点认为,对母语的感知调和 (在6-10个月时出现) 先于语音特征抽象.
- 收养成人的证据表明,声学特征抽象可能更早发生,在6个月之前.
研究的目的:
- 直接调查婴儿的声学特征抽象.
- 为了测试4-6个月大的婴儿是否可以进行共音口音位的amodal抽象.
主要方法:
- 婴儿被训练将非单词与视觉刺激联系起来,区分嘴唇和冠状音的声音.
- 在测试中,婴儿在观看无声语音视频时,测量了婴儿的观看时间,将字型与熟悉或不熟悉的图像相关联.
主要成果:
- 与不匹配试验相比,婴儿在匹配试验 (熟悉的图像与熟悉的单词类型) 中表现出更长的查看时间.
- 这表明成功的amodal抽象的唇形与冠状位置的关节区别.
结论:
- 声学特征抽象,特别是辅音发音位置的抽象,在4-6个月的婴儿中存在.
- 这一发现提供了直接的证据,声学特征抽象比对母语声音的感知调整更早出现.
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