English-learning infants' segmentation of verbs from fluent speech
English-learning infants' segmentation of verbs from fluent speech
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DOI：
10.1177/00238309050480030201
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发表时间：
2005-01-01
影响因子：
1.8
通讯作者：
Jusczyk, PW
中科院分区：
文献类型：
--
作者：
Nazzi, T;Dilley, LC;Jusczyk, PW
两项实验试图将学习英语的婴儿从流利的言语中分割名词的能力扩展到新的词汇类别：动词。此外，我们还探讨了先前显示的影响名词分割的两个因素，重音模式（强-弱或弱-强）和初始音素类型（辅音或元音）是否也影响动词分割。我们的结果证实了英语中动词分割的早期出现：强弱辅音或元音词首动词和弱强辅音词首动词早了 13.5 个月；对于以元音开头的弱强动词，要晚 16.5 个月。这将先前关于早期分割的报告概括为新的词汇类别，从而提供了额外的证据表明分割可能有助于词汇习得。发现的重音模式和起始类型的影响与之前获得的名词相似，具有弱-强重音模式的动词和以元音开头的动词在分词中似乎处于劣势。最后，我们提出韵律分析，表明韵律边界和音高重音分布对分割的可能影响。与早期的名词分割研究结果相比，这些韵律差异可能解释了本研究中观察到的动词分割的发展滞后。
Two experiments sought to extend the demonstration of English-learning infants' abilities to segment nouns from fluent speech to a new lexical class: verbs. Moreover, we explored whether two factors previously shown to influence noun segmentation, stress pattern (strong-weak or weak-strong) and type of initial phoneme (consonant or vowel), also influence verb segmentation. Our results establish the early emergence of verb segmentation in English: by 13.5 months for strong-weak consonant- or vowel-initial verbs and for weak-strong consonant-initial verbs; and by 16.5 months for weak-strong verbs beginning with a vowel. This generalizes previous reports of early segmentation to a new lexical class, thereby providing additional evidence that segmentation is likely to contribute to lexical acquisition. The effects of stress pattern and onset type found are similar to those previously obtained for nouns, in that verbs with a weak-strong stress pattern and verbs beginning with a vowel appear to be at a disadvantage in segmentation. Finally, we present prosodic analyses that suggest a possible effect of prosodic boundary and pitch accent distribution on segmentation. These prosodic differences potentially explain a developmental lag in verb segmentation observed in the present study compared to earlier findings for noun segmentation.