Young children's sensitivity to probabilistic phonotactics in the developing lexicon
Young children's sensitivity to probabilistic phonotactics in the developing lexicon
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DOI：
10.1016/j.jecp.2004.07.004
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发表时间：
2004-11-01
影响因子：
2.6
通讯作者：
Aslin, RN
中科院分区：
文献类型：
--
作者：
Coady, JA;Aslin, RN
一系列的三个实验考察了儿童对概率语音结构的敏感性，这反映在美式英语中语音出现和同时出现的相对频率上。2(1)/(2)岁和3(1)/(2)岁的儿童参加了一个非单词重复任务，测试他们对单个语音片段频率和语音片段组合频率的敏感性。在剔除发音难易程度和词汇变量后，两组儿童重复高音标频率非单词比低音标频率非单词更准确，表明对音素频率敏感。此外，对单个音段的敏感性随年龄增长而增加。最后，年龄较大的儿童，而不是年龄较小的儿童，对较大（diphone）单位的频率敏感。这些结果表明，幼儿不仅对发展中的词汇中的细粒度语音信息敏感，而且对声音结构的各个方面的敏感性也随着发展而增加。讨论了发展中词汇表征和成熟词汇表征对声学性质的影响。(C) 2004爱思唯尔公司版权所有。
A series of three experiments examined children's sensitivity to probabilistic phonotactic structure as reflected in the relative frequencies with which speech sounds occur and co-occur in American English. Children, ages 2(1)/(2) and 3(1)/(2) years, participated in a nonword repetition task that examined their sensitivity to the frequency of individual phonetic segments and to the frequency of combinations of segments. After partialling out ease of articulation and lexical variables, both groups of children repeated higher phonotactic frequency nonwords more accurately than they did low phonotactic frequency nonwords, suggesting sensitivity to phoneme frequency. In addition, sensitivity to individual phonetic segments increased with age. Finally, older children, but not younger children, were sensitive to the frequency of larger (diphone) units. These results suggest not only that young children are sensitive to fine-grained acoustic-phonetic information in the developing lexicon but also that sensitivity to all aspects of the sound structure increases over development. Implications for the acoustic nature of both developing and mature lexical representations are discussed. (C) 2004 Elsevier Inc. All rights reserved.