A clinical research on articulation disorders after surgery on oral lesions. - A simultaneous analysis of tongue, lips and jaw movements during pronunciation -

本文提出了一种利用同步高速16mm电影摄影（cine）、动态腭照相（DP）和声谱照相（SG）记录和分析舌、唇和下颌发音运动的新方法，以阐明发音障碍的动态，为其诊断和治疗提供依据。方法如下：在语音生成过程中，以每秒64帧的速率拍摄面部位置标记的正面和侧面视图。DP以相同的速度和语音同时录音。利用同步脉冲发生器，将发光二极管帧标记分别记录在电影胶片上，同时将噪声信号记录在录音磁带上。根据sg上显示的每个噪声信号，电影中面部标记的运动与DP同步。使用该方法对正常受试者和半失分体受试者在/asa/和/ata/发音过程中的动态进行分析，得到以下结果：1)正常受试者在发出/s/时，下颌和舌头都在移动，当腭舌接触最大时，下颌切牙点最靠近受试者的中心咬合（DP max.point）。2)在正常科目中。下颚仍然上升超过DP最大值。下颚开始下移后，舌尖从上颚释放。(3)半失语患者的“/t/”发音是通过唇部接触和腭语接触发出的。(4)半截骨患者在发/s/音时，a擦音不仅是通过腭舌接触发出的，而且是通过双唇之间狭窄的空间发出的，这是可理解性最高的/s/音。5)爆破音的补发发音比摩擦音的补发发音更困难。

A new method for recording and analyzing articulatory movements of tongue, lip and jaw utilizing synchronous high-speed 16mm cinematography(cine), dyn3mic palatography (DP) and soud spectrography (SG) was developed to clarify the dynamics of the articulation disorders to contribute to the diagnosis and treatment of it. The mcthod is as follws: frontal and lateral views of the facial position markers are filmed at the rate of 64 frame per second during speech production. DP at the same speed and speech soud are tape rcorded simultaneously. Utilizing synchronous pulse generator, light emitting diode frame markers are recorded on the cine film and noise signals are recorded on the recording tape, respectively, at the same time. The movements of the facial markers in cine are synchronezed with DP, according to each noise signals revealed on the.SG. The following results are obtained by analizing the dynamics during pronunciation of /asa/ and /ata/ by normal and hemiglossectomized subjects using this method: 1) In the normal subject, the jaw and tongue were both moving througb uttering /s/, and mandibular incisor point was closest to the centric occlulsion of the subject when the palatolingual conatact were maximaum(DP max.point). 2) in the normal subject. the jaw was still rising past the DP max.point. The tip of the tongue released from the palate after the jaw starting to go down. 3) In the hemiglossectomized patien, the plosion to pronounce /t/ of which the intelligibility was lowest level was produced by both lips and palatolingual contact. 4) In the hemigiossectomized patient, the a fricative was made not only by palatolingual contact but also by a narrow space between both lips during utterance of /s/ of which the intelligibilty was highest. 5) It was suggested that the production of the compensatory articulation for plosive sound was more difficult than for a fricative sound.