Murdoch B E, Spencer T J, Theodoros D G, Thompson E C
Motor Speech Research Unit, Department of Speech Pathology & Audiology, The University of Queensland, Brisbane, 4072, Australia.
Motor Control. 1998 Apr;2(2):148-60. doi: 10.1123/mcj.2.2.148.
A physiological analysis of the articulatory function of 16 adults with multiple sclerosis (MS) was performed using lip and tongue transduction systems. Sixteen nonneurologically impaired adults, matched for age, gender, and education, served as controls. The MS speakers demonstrated patterns of tongue function that were significantly different from those of the control speakers. Specifically, the MS speakers were found to have significantly reduced tongue strength, endurance, and rate of repetitive movements. In addition, preclinical signs of lingual dysfunction were evident in nondysarthric MS speakers on endurance and rate tasks when compared to control subjects. These physiological findings could account for the perceptual findings of impaired articulation and reduced intelligibility. No lip dysfunction was found on either the physiological or perceptual assessments.
使用唇部和舌部传导系统对16名患有多发性硬化症（MS）的成年人的发音功能进行了生理分析。16名年龄、性别和教育程度相匹配的无神经功能障碍的成年人作为对照。患有MS的说话者表现出的舌部功能模式与对照说话者有显著差异。具体而言，发现患有MS的说话者舌部力量、耐力和重复运动速率明显降低。此外，与对照受试者相比，在耐力和速率任务中，无构音障碍的MS说话者出现了舌功能障碍的临床前迹象。这些生理发现可以解释发音受损和可懂度降低的感知结果。在生理或感知评估中均未发现唇部功能障碍。
