Speech movements do not scale by orofacial structure size.
Speech movements do not scale by orofacial structure size.
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言语运动不随口面部结构大小而变化。
DOI：
10.1152/japplphysiol.00502.2002
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发表时间：
2003
期刊：
影响因子：
--
通讯作者：
Smith,Anne
中科院分区：
文献类型：
--
作者：
Riely,RachelR;Smith,Anne
通过使用组间（成人与5岁儿童）以及组内相关性分析，研究了语音orofacial运动的大小缩放原则的潜在作用。运动的下唇和下巴记录在讲话过程中，和人体测量的口面结构。成年女性产生的言语运动的幅度和速度相同的成年男性。儿童产生的言语运动幅度与成人相同，但口面运动的峰值速度明显低于成人。因此，我们发现没有证据支持的大小缩放原则orofacial语音运动。与年轻人相比，幼儿有一个相对大幅度，低速运动的言语产生策略。这一策略可能反映了需要更多的时间来规划言语运动序列，并增加了对感觉反馈的依赖，因为幼儿发展言语运动控制过程。
The potential role of a size-scaling principle in orofacial movements for speech was examined by using between-group (adults vs. 5-yr-old children) as well as within-group correlational analyses. Movements of the lower lip and jaw were recorded during speech production, and anthropometric measures of orofacial structures were made. Adult women produced speech movements of equal amplitude and velocity to those of adult men. The children produced speech movement amplitudes equal to those of adults, but they had significantly lower peak velocities of orofacial movement. Thus we found no evidence supporting a size-scaling principle for orofacial speech movements. Young children have a relatively large-amplitude, low-velocity movement strategy for speech production compared with young adults. This strategy may reflect the need for more time to plan speech movement sequences and an increased reliance on sensory feedback as young children develop speech motor control processes.