Phonotactic and prosodic effects on word segmentation in infants
Phonotactic and prosodic effects on word segmentation in infants
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DOI：
10.1006/cogp.1999.0721
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发表时间：
1999-06-01
影响因子：
2.6
通讯作者：
Morgan, JL
中科院分区：
文献类型：
--
作者：
Mattys, SL;Jusczyk, PW;Morgan, JL
本研究探讨了9个月大的婴儿的语音分割问题。两个线索已知携带概率信息的词边界进行了调查：语音的规律性和韵律模式。在四个转头偏好实验中使用的刺激是双音节的CVC，CVC非词在第一或第二音节（强/弱vs.弱/强）承载主重音。刺激也不同的跨音节C. C集群的语音定位性质。集群有一个低概率发生在一个词的交界处流利的讲话和一个高概率发生在词内（“词内”集群）或一个高概率发生在一个词的交界处和一个低概率发生在词内（“词间”集群）。我们的研究结果表明：（1）9个月大的婴儿对语音趋化序列与词边界的典型对齐方式很敏感，（2）改变刺激的重音模式会逆转婴儿对语音趋化簇类型的偏好，（3）对分割的韵律线索比语音趋化线索更依赖，以及（4）通过将重音放在刺激的第二个音节上或通过在音节之间插入停顿，可以获得对高概率词间趋声序列的偏好。这些结果的影响进行了讨论，在光的综合多线索的方法，语音分割在婴儿期。(C)北京：科学出版社.
This research examines the issue of speech segmentation in 9-month-old infants. Two cues known to carry probabilistic information about word boundaries were investigated: Phonotactic regularity and prosodic pattern. The stimuli used in four head turn preference experiments were bisyllabic CVC.CVC nonwords bearing primary stress in either the first or the second syllable (strong/weak vs. weak/strong). Stimuli also differed with respect to the phonotactic nature of their cross-syllabic C.C cluster. Clusters had either a low probability of occurring at a word juncture in fluent speech and a high probability of occurring inside of words (''within-word'' clusters) or a high probability of occurring at a word juncture and a low probability of occurring inside of words (''between-word'' clusters). Our results show that (1) 9-month-olds are sensitive to how phonotactic sequences typically align with word boundaries, (2) altering the stress pattern of the stimuli reverses infants' preference for phonotactic cluster types, (3) the prosodic cue to segmentation is more strongly relied upon than the phonotactic cue, and (4) a preference for high-probability between-word phonotactic sequences can be obtained either by placing stress on the second syllable of the stimuli or by inserting a pause between syllables. The implications of these results are discussed in light of an integrated multiple-cue approach to speech segmentation in infancy. (C) 1999 Academic Press.