婴幼儿母语音位范畴习得机制的建模研究

A modeling study of infants' categorical phonemic perception mechanism in first language acquisition

婴幼儿对母语音位范畴的习得依赖于其与语言社会的交互。本研究从计算建模的角度出发,通过建立语言习得模型,利用家长输入语语料,模拟婴幼儿在言语交互中习得母语音位范畴的过程。基于联结的模型网络结构,本研究观察了语音信息和语义信息在音位习得中的交互作用。模拟结果揭示出,婴幼儿母语音位感知的建立不是一个由单一因素所决定的过程,基于语义的由高层到底层的加工对形成正确的母语音位范畴感知起着至关重要的作用。

Infants'phoneme acquisition relies on communication within the language community.Starting from the computer modeling perspective,this study builds a language acquisition model.The model simulates infants'phoneme acquisition process under speech communication,using parents'speech as inputs.The study focuses on the interactions between phonetic and semantic information.The experiment results show that the formation of the mother-tongue-based phonemic perception is not a one-factor-determined process,where the semantic-based top-down processing is essential for acquiring the correct phonemic perception of infants'mother tongue.