Prosodic disambiguation of noun/verb homophones in child-directed speech.
Prosodic disambiguation of noun/verb homophones in child-directed speech.
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DOI：
10.1017/s030500091600009x
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发表时间：
2017-05
影响因子：
2.2
通讯作者：
Conwell E
中科院分区：
文献类型：
--
作者：
Conwell E
儿童可能会使用一种策略来将单词分类为语法类别，如名词和动词，这是一种分布自举策略，即使用局部共现信息来区分类别。对于这种方法，可以在多个语法类别中使用的单词可能会出现问题。本研究利用自然语料库数据，探讨在儿童导向言语中，名词和动词歧义词的用法是否会因其语法类别的不同而有韵律上的差异。研究结果表明，处于句中位置的歧义词的名词和动词用法在时长、元音时长、音高变化和元音质量等方面存在差异。然而，句末标记并不随其使用类别的不同而不同。在自然的儿童导向的言语中，韵律线索的可用性可以使学习者使用分布自举方法来避免混淆语法类别。
One strategy that children might use to sort words into grammatical categories such as noun and verb is distributional bootstrapping, in which local co-occurrence information is used to distinguish between categories. Words that can be used in more than one grammatical category could be problematic for this approach. Using naturalistic corpus data, this study asks whether noun and verb uses of ambiguous words might differ prosodically as a function of their grammatical category in child-directed speech. The results show that noun and verb uses of ambiguous words in sentence-medial positions do differ from one another in terms of duration, vowel duration, pitch change, and vowel quality measures. However, sentence-final tokens are not different as a function of the category in which they were used. The availability of prosodic cues to category in natural child-directed speech could allow learners using a distributional bootstrapping approach to avoid conflating grammatical categories.