Dalston R M, Warren D W, Morr K E, Smith L R
Oral-Facial and Communicative Disorders Program, University of North Carolina, Chapel Hill 27514.
Cleft Palate J. 1988 Jul;25(3):210-9.
Intraoral pressure measurements were made during multiple productions of the word "hamper" by each of 267 patients who manifested differing degrees of velopharyngeal inadequacy. The results indicate that intraoral pressure diminishes as the extent of velopharyngeal impairment increases. However, pressure remained above 3 cm H2O in the majority of subjects, even when the impairment was such that intraoral and intranasal pressures were essentially equal. Comparison of these results with model simulations suggests that speakers make adjustments to velopharyngeal impairment that tend to maintain pressures at levels thought to be necessary for obstruent consonant production. Variations in pressure as a function of gender and age parallel those observed in normal children and adults.
对267名表现出不同程度腭咽功能不全的患者在多次发出“hamper”一词时进行了口内压力测量。结果表明，随着腭咽功能损害程度的增加，口内压力会降低。然而，即使在损害程度达到口内压力和鼻内压力基本相等的情况下，大多数受试者的压力仍保持在3厘米水柱以上。将这些结果与模型模拟结果进行比较表明，说话者会对腭咽功能损害进行调整，倾向于将压力维持在被认为是产生塞音所需的水平。压力随性别和年龄的变化与在正常儿童和成年人中观察到的情况相似。
