Call me Alix, not Elix: vowels are more important than consonants in own-name recognition at 5 months
Call me Alix, not Elix: vowels are more important than consonants in own-name recognition at 5 months
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DOI：
10.1111/desc.12242
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发表时间：
2015-07-01
影响因子：
3.7
通讯作者：
Nazzi, Thierry
中科院分区：
文献类型：
--
作者：
Bouchon, Camillia;Floccia, Caroline;Nazzi, Thierry
辅音和元音在声学和发音上不同，但在功能上也不同：辅音与词汇加工更相关，元音与韵律/句法加工更相关。这些功能偏差可能是学习语言的强大自举机制，但它们的发展起源尚不清楚。在学习法语的5个月大的儿童中，通过测试他们对自己名字中最小的语音变化的敏感度，评估了辅音和元音在词汇习得开始时的相对重要性。婴儿对发音错误的反应表现出对元音变化的敏感性，但对辅音变化不敏感。元音也比辅音更突出(在持续时间和强度上)，但不那么明显(在基于光谱的衡量标准上)。最后，元音(但不是辅音)发音错误的检测受到声学因素的调节，特别是基于频谱的距离。这些结果表明，辅音变化对5个月后的词汇识别没有影响，而元音变化对词汇识别有影响；辅音偏向在发育后期通过额外的语言暴露在5个月后才出现。
Consonants and vowels differ acoustically and articulatorily, but also functionally: Consonants are more relevant for lexical processing, and vowels for prosodic/syntactic processing. These functional biases could be powerful bootstrapping mechanisms for learning language, but their developmental origin remains unclear. The relative importance of consonants and vowels at the onset of lexical acquisition was assessed in French-learning 5-month-olds by testing sensitivity to minimal phonetic changes in their own name. Infants' reactions to mispronunciations revealed sensitivity to vowel but not consonant changes. Vowels were also more salient (on duration and intensity) but less distinct (on spectrally based measures) than consonants. Lastly, vowel (but not consonant) mispronunciation detection was modulated by acoustic factors, in particular spectrally based distance. These results establish that consonant changes do not affect lexical recognition at 5 months, while vowel changes do; the consonant bias observed later in development does not emerge until after 5 months through additional language exposure.