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目的:本研究通过电磁构音图谱仪(EMA)获取舌头运动学参数来分析和比较脑卒中后神经控制异常性构音障碍的粤语患者与正常人(说粤语)说话时舌头运动之差异。方法:招募一名脑卒中后神经控制异常性构音障碍的粤语男性患者以及一位年龄相比配的男性健康受试者,这2位受试者发出音节初始位置上分别含有(/t/,/th/,/k/,/kh/,/ts/,/tsh/,/s/)6个清辅音的粤语单音字节时,利用电磁构音图谱仪观察、追踪并记录其舌头不同部位的运动参数,包括时间、位移、速度和加速度。结果:脑卒中后神经控制异常性构音障碍患者舌尖与正常人说话时相比,其运动的位移和时间较长,而同时其速度和加速度却要比正常人慢。此外,错误音素构音过程中的舌头位移都类似于被替代的/t/音素的构音过程中的舌头位移,这也就解释了为何这些错误构音的音素在听觉感知实验过程中被感知成了/t/音素。结论:电磁构音图谱仪为神经控制异常性构音障碍患者发音偏差的研究提供了更好的测量证据。
OBJECTIVE: In this study, tongue kinematics parameters were acquired by EMA to analyze and compare the differences of tongue movements between Cantonese patients with normal controls (speaking Cantonese) and dysarthria with post-stroke neuronal dysarthria. METHODS: One Cantonese male patient with neurological dysarthria dysfunction after stroke was enrolled, and a male healthy subject with age-matched syllabuses were included in the initial syllable position (/ t / , / k /, / kh /, / ts /, / tsh /, / s /) Cantonese monophonic bytes of 6 clear consonants, the use of electromagnetic consonance spectroscopy to observe, track and record the tongue Different parts of the movement parameters, including time, displacement, speed and acceleration. Results: Compared with normal subjects, the tongue of patients with abnormal control of speech dysfunction after stroke had longer displacement and longer time of movement, while its speed and acceleration were slower than those of normal subjects. In addition, the tongue displacements during the wrong phoneme are similar to the tongue displacements during the accentuation of the replaced / t / phoneme, which explains why these erroneous phonemes are perceived during auditory perception experiments Become / t / phoneme. CONCLUSIONS: Electromagnetic acoustic spectroscopy provides better measurement evidence for the study of the deviation in pronunciation of patients with neurologic abnormalities in dysarthria.