Nonword repetition in children and adults: effects on movement coordination.
Nonword repetition in children and adults: effects on movement coordination.
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儿童和成人的非单词重复：对运动协调的影响。
DOI：
10.1111/j.1467-7687.2009.00911.x
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发表时间：
2010
影响因子：
3.7
通讯作者：
Weber-Fox,Christine
中科院分区：
文献类型：
--
作者：
Sasisekaran,Jayanthi;Smith,Anne;Sadagopan,Neeraja;Weber-Fox,Christine
听和重复新的语音序列，或新的非单词，是一项涉及多个处理层次的任务，包括听觉解码、语音处理、工作记忆、言语运动计划和执行。非词重复能力的研究一直是在心理语言加工模型中进行的，而对任务表现至关重要的运动方面却在很大程度上被忽视了。我们的研究重点是9岁和10岁的儿童和年轻人在学习范式下完成这项任务的行为和言语运动表现特征。为了调查短期（第1天，前5次与后5次试验）和长期（第1天与第2天，前5次与后5次试验）与训练期间和训练间隙相关的变化，获得了行为（正确动作百分比）和运动学（运动持续时间，唇孔变异性-重复试验中关节间协调一致性的指标）测量结果。总的来说，正如预期的那样，年轻人表现出比儿童更高的行为准确性和更强的协调一致性。然而，两组都表现出了学习效应，总的来说，第1天和第2天的试验比第1天的早期试验持续时间更短，协调模式更一致。非词的音素复杂性对行为和言语运动方面的表现都有深远的影响。孩子们在他们能准确说出的所有非词上都表现出明显的学习效果，而成人的表现只有在受到更复杂的非词刺激时才有所提高。研究结果指出了言语运动过程在非词重复模型中的关键作用，并表明年轻人与儿童相似，在重复复杂非词的协调一致性方面表现出短期和长期的改善。在非词语产生表现方面也有明显的发展变化，例如，不太复杂的小说序列会引起儿童语言运动表现的变化，而在成人中则不会。
Hearing and repeating novel phonetic sequences, or novel nonwords, is a task that taps many levels of processing, including auditory decoding, phonological processing, working memory, speech motor planning and execution. Investigations of nonword repetition abilities have been framed within models of psycholinguistic processing, while the motor aspects, which also are critical for task performance, have been largely ignored. We focused our investigation on both the behavioral and speech motor performance characteristics of this task as performed in a learning paradigm by 9‐ and 10‐year‐old children and young adults. Behavioral (percent correct productions) and kinematic (movement duration, lip aperture variability – an index of the consistency of inter‐articulator coordination on repeated trials) measures were obtained in order to investigate the short‐term (Day 1, first five vs. next five trials) and longer‐term (Day 1 vs. Day 2, first five vs. next five trials) changes associated with practice within and between sessions. Overall, as expected, young adults showed higher levels of behavioral accuracy and greater levels of coordinative consistency than the children. Both groups, however, showed a learning effect, such that in general, later Day 1 trials and Day 2 trials were shorter in duration and more consistent in coordination patterns than Day 1 early trials. Phonemic complexity of the nonwords had a profound effect on both the behavioral and speech motor aspects of performance. The children showed marked learning effects on all nonwords that they could produce accurately, while adults’ performance improved only when challenged by the more complex nonword stimuli in the set. The findings point to a critical role for speech motor processes within models of nonword repetition and suggest that young adults, similar to children, show short‐ and longer‐term improvements in coordinative consistency with repeated production of complex nonwords. There is also a clear developmental change in nonword production performance, such that less complex novel sequences elicit changes in speech motor performance in children, but not in adults.
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影响因子：
1.9
作者：
BARTLETT, MS
通讯作者：
BARTLETT, MS
青少年的发音运动：言语运动控制过程长期发展的证据。
DOI：
10.1044/1092-4388(2002/090
发表时间：
2002
期刊：
Journal of speech, language, and hearing research : JSLHR
影响因子：
--
作者：
Walsh,Bridget;Smith,Anne
通讯作者：
Smith,Anne
DOI：
--
发表时间：
1974
期刊：
Journal of Speech and Hearing Research
影响因子：
--
作者：
Kathe Allan Yoss;F. Darley
通讯作者：
F. Darley
影响因子：
2.1
作者：
Prahlad Gupta
通讯作者：
Prahlad Gupta
言语运动学习：初步数据
影响因子：
1.2
作者：
G. Schulz;Lee Stein;Ryan Micallef
通讯作者：
Ryan Micallef