Coordination of Velopharyngeal Muscle Activity during Positioning of the Soft Palate
Coordination of Velopharyngeal Muscle Activity during Positioning of the Soft Palate
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DOI：
10.1597/1545-1569_1994_031_0045_covmad_2.3.co_2
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发表时间：
1994-01
期刊：
影响因子：
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通讯作者：
J. Moon;Alice E. Smith;J. Folkins;J. Lemke;M. Gartlan
中科院分区：
文献类型：
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作者：
J. Moon;Alice E. Smith;J. Folkins;J. Lemke;M. Gartlan
在4名正常成人说话者发出元音[a]和[I]的过程中，评估了腭帆提肌、腭舌肌和腭咽肌相对于咽前肌位置范围的相对贡献。结果表明，腭帆提肌、腭舌肌和腭咽肌的相对作用决定了腭咽的定位。决定系数增加（即，当所有三块肌肉的活动水平都包括在统计模型中时，与独立分析的任何一块肌肉的活动相比，闭合水平可变性的量被解释）。在三个研究的咽喉肌肉的活动水平之间的一致和不一致的关系，观察跨扬声器和元音产生。
The relative contributions of the levator veli palatini, palatoglossus, and palatopharyngeus muscles were assessed relative to a range of positions of the velopharynx during production of the vowels [a] and [I] by four normal adult speakers. The results indicate that velopharyngeal positioning is determined by the relative contributions of the levator veli palatini, palatoglossus, and palatopharyngeus muscles. There was an increase In coefficients of determination (i.e., amount of closure level variability explained) when activity levels of all three muscles are included in the statistical model compared to activity in any one muscle analyzed independently. Both consistent and inconsistent relations among activity levels in the three velopharyngeal muscles studied were observed across speaker and vowel produced.