Silent mandibular oscillations in vocal babbling
Silent mandibular oscillations in vocal babbling
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DOI：
10.1159/000262219
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发表时间：
1997-01-01
期刊：
影响因子：
0.9
通讯作者：
Willerman, R
中科院分区：
文献类型：
--
作者：
Meier, RP;McGarvin, L;Willerman, R
早期的咿呀学语被认为是一种基本的下颌振荡：婴儿反复降低和提高下颌骨，产生封闭声道结构中产生的辅音和开放声道中产生的元音之间的明显对比。我们想知道咿呀学语者是否会在没有发音的情况下产生有节奏的下颌振荡，如果是这样，这种“下颌摆动”与早期言语之间是否存在关系。我们报告了两项研究：第一个是对14名婴儿的纵向观察研究，其中一些是听力正常的，一些是聋人。7个婴儿（3个听力正常的，3个耳聋的，还有1个听力受损的）发出了无数像说话一样的、有节奏的、没有发音的下颚摆动；有时下巴的摆动会形成一个单一的话语，带有发音的咿呀学语。这里报道的大多数下颌摆动发生在这些婴儿8-13个月大的时候。第二项研究调查了90名4到10个月大的听力正常婴儿的父母，结果表明，无声的咿呀学语可能是早期语言发展的普遍现象。
Early babbling has been characterized as being fundamentally a mandibular oscillation: the infant's repeated lowering and raising of its mandible yields a perceived contrast between consonants produced in a closed vocal tract configuration and vowels produced with an open tract, We wondered whether babblers produce rhythmic mandibular oscillations without phonation and, if so, whether there might be a relationship between such 'jaw wags' and early speech, We report two studies: the first is a longitudinal, observational study of 14 infants, some of whom were hearing and some Deaf. Seven infants (3 hearing, 3 Deaf, and I hearing-impaired) produced numerous speech-like, rhythmic jaw wags without phonation; sometimes jaw wags formed a single utterance with phonated babbling. Most jaw wags reported here were produced when these infants were ages 8-13 months. The second study, a survey of 90 parents of 4- to 10-month-old hearing infants, suggests that silent babbles may be a widespread phenomenon of early speech development.