Kinematic differentiation of prosodic categories in normal and disordered language development
Kinematic differentiation of prosodic categories in normal and disordered language development
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DOI：
10.1044/1092-4388(2004/081
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发表时间：
2004-10-01
影响因子：
2.6
通讯作者：
Goffman, L
中科院分区：
文献类型：
--
作者：
Goffman, L
韵律-是复杂的和有层次的组织，但实现为有节奏的运动序列。因此，对运动的节奏方面的发展的观察可以提供对运动和语言过程之间的联系的洞察，特别是韵律区别（例如，脚和韵律词）在有节奏的运动输出中被实例化。本实验研究了4- 7岁儿童（正常发育和特殊语言障碍）和成人的韵律序列的产生，这些韵律序列被控制为语音内容，但在形态句法结构上不同（即，内容vs.功能词）。主要分析包括节奏结构的运动学测量（即，在弱音节与强音节中的运动的幅度和持续时间）跨内容和功能上下文。研究结果表明，在发音运动的水平，成人产生不同的节奏类别的内容和功能词的背景下，而儿童没有。特殊语言障碍儿童与正常发育的同龄人的不同之处仅在于他们产生组织良好和稳定的节奏运动的能力，而不是在韵律类别的分化。
Proscidy-is complex and hierarchically organized but is realized as rhythmic movement sequences. Thus, observations of the development of rhythmic aspects of movement can provide insight into links between motor and language processes, specifically whether prosodic distinctions (e.g., feet and prosodic words) are instantiated in rhythmic movement output. This experiment examined 4-7year-old children's (both normally developing and specifically language impaired) and adults' productions of prosodic sequences that were controlled for phonetic content but-differed in morphosyntactic structure (i.e., content vs. function words). Primary analyses included kinematic measures of rhythmic structure (i.e., amplitude and duration of movements in weak vs. strong syllables) across content and function contexts. Findings showed that at the level of articulatory movement, adults produced distinct rhythmic categories across content and function word contexts, whereas children did not. Children with specific language impairment differed from normally developing peers only in their ability to produce well-organized and stable rhythmic movements, not in the differentiation of prosodic categories.