Simultaneous assessment of pharyngeal wall and velar displacement for selected speech sounds.
Simultaneous assessment of pharyngeal wall and velar displacement for selected speech sounds.
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同时评估选定语音的咽壁和软腭位移。
DOI：
10.1044/jshr.2302.429
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发表时间：
1980
期刊：
影响因子：
--
通讯作者：
Morris,HL
中科院分区：
文献类型：
--
作者：
Iglesias,A;Kuehn,DP;Morris,HL
同时用常规的侧位X线片和正位断层摄影研究腭壁和咽壁的移位。研究对象为25名正常成年男女受试者。与语音过程中的咽侧壁移位有关的主要结果包括以下内容。1)在更高的咽部水平，与鼻音相比，非鼻音产生更大的内侧移位，并且在所研究的非鼻音之间没有显著差异。2)在咽下水平，低元音的近中位移比其他被研究的语音大，但在一些受试者的高元音产生过程中观察到一些侧向(向外)运动。3)所研究的所有受试者和语音的最大中移发生在硬腭水平和略低于硬腭平面的水平。对于大多数受试者来说，咽壁和咽壁的侧向位移之间的相关性很低。研究结果不支持腭帆提肌仅参与咽前壁和咽壁外侧运动的假说。
Velar and pharyngeal wall displacements were studied simultaneously by using conventional lateral-view radiography and frontal-view tomography. Twenty-five normal adult male and female subjects were utilized. Major results pertaining to lateral pharyngeal wall displacements during speech include the following. 1) At more superior levels of the pharynx, greater mesial displacements occurred for nonnasal compared to nasal speech sounds and no significant differences were noted among the nonnasal speech sounds studied. 2) At an inferior level of the pharynx, mesial displacements were greater for low vowels compared to the other speech sounds studied but some lateral (outward) movements were observed during high vowel production for some subjects. 3) Greatest mesial displacements for all subjects and speech sounds studied occurred at the level of and just below the plane of the hard palate. Low correlations between velar and lateral pharyngeal wall displacements were obtained for most subjects. The results do not support the hypothesis that the levator veli palatini muscle is solely involved in both velar and lateral pharyngeal wall movements.