Speech and language production at age 2: evidence for tradeoffs between linguistic and phonetic processing.
Speech and language production at age 2: evidence for tradeoffs between linguistic and phonetic processing.
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2 岁时的言语和语言产生：语言和语音处理之间权衡的证据。
DOI：
10.1044/jshr.3404.879
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发表时间：
1991
期刊：
影响因子：
--
通讯作者：
Bauer,HR
中科院分区：
文献类型：
--
作者：
Nelson,LK;Bauer,HR
本研究的目的是探讨2岁儿童在自发言语中如何处理语音产生和单词组合产生之间的关系。受试者是 5 名发育正常的 2 岁儿童，他们参与了一项正在进行的言语和语言习得纵向研究。使用三种方法来评估儿童自发言语样本中的语音产生技能。其中包括辅音产生准确性的测量（辅音正确的百分比），以及语音复杂性的两个估计器（话语和字长单位的语音乘积）。回归分析用于确定单词组合的复杂性（通过语素的发音长度和命题复杂性分析来衡量）与语音生成技能的利用之间的关系。结果显示，5 个孩子中有 2 个在单词组合的复杂性和辅音发音的准确性之间存在适度的权衡。结果还显示了 5 个孩子中的 4 个在单词组合的复杂性和单个词汇项目（单词的语音乘积）的语音复杂性之间的权衡。随着这 4 个孩子的多词组合的复杂性增加，单个词汇的语音复杂性下降。这些结果与语言习得和语言处理的协同理论一致，该理论强调有限能力生产系统中语言处理水平之间相互作用的动态权衡。
The purpose of this study was to explore how 2-year-old children manage the relationship between phonetic production and production of word combinations in their spontaneous speech. The subjects were 5 normally developing 2-year-olds who were participants in an ongoing longitudinal study of speech and language acquisition. Three measures were used to estimate phonetic production skills in the children’s spontaneous speech samples. These included a measure of the accuracy of consonant production (Percentage of Consonants Correct), and two estimators of phonetic complexity (phonetic products for utterance and word length units). Regression analyses were used to determine the relationship between complexity of word combinations, as measured by length of utterance in morphemes and a propositional complexity analysis, and utilization of phonetic production skills. The results revealed modest tradeoffs between complexity of word combinations and accuracy of consonant production for 2 of the 5 children. The results also showed tradeoffs between complexity of word combinations and phonetic complexity of individual lexical items (phonetic product for words) for 4 of the 5 children. As the complexity of these 4 children’s multiword combinations increased, the phonetic complexity of individual lexical items decreased. These results are consistent with synergistic theories of language acquisition and language processing that emphasize dynamic tradeoffs in interactions among language processing levels in a limited capacity production system.