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A fiberscopic observation of velar movements during speech was made of a patient diagnosed as having apraxia of speech. Repeated utterances of the same word showed a marked variability in terms of the pattern of velar movements accompanied at times by a phonetic change. In spite of such a variability, the general successional pattern of velar gestures for a given phonetic context approximated the normal pattern. During the production of nasal and nonnasal consonants the velum tended to take “neutral” positions. Anticipatory coarticulation was present, but some deviation from normal patterns was occasionally observed. Based on these observations, possible mechanisms responsible for the syndrome called apraxia of speech were discussed. 相似文献
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Motonobu Itoh Sumiko Sasanuma Hajime Hirose Hirohide Yoshioka Tatsujiro Ushijima 《Brain and language》1980,11(1):66-75
The temporal organization of articulatory movements in a patient diagnosed as having apraxia of speech was explored by means of pellet tracking techniques using an X-ray microbeam system. The results indicated that the temporal organization among different articulators of the patient was sometimes disturbed in his production of a meaningful Japanese word /deenee/. It was also observed that the pattern and velocity of the articulatory movements of the patient in repetitions of monosyllables were different from those of typical dysarthric patients. 相似文献
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