Bressmann Tim, Harper Susan, Zhylich Irina, Kulkarni Gajanan V
a Department of Speech-Language Pathology , University of Toronto , Toronto , ON , Canada.
b Faculty of Dentistry , University of Toronto , Toronto , ON , Canada.
Clin Linguist Phon. 2016;30(3-5):345-62. doi: 10.3109/02699206.2016.1140227. Epub 2016 Mar 16.
Outcomes of articulation therapy for rhotic errors are usually assessed perceptually. However, our understanding of associated changes of tongue movement is limited. This study described perceptual, durational and tongue displacement changes over 10 sessions of articulation therapy for /ɹ/ in six children. Four of the participants also received ultrasound biofeedback of their tongue shape. Speech and tongue movement were recorded pre-therapy, after 5 sessions, in the final session and at a one month follow-up. Perceptually, listeners perceived improvement and classified more productions as /ɹ/ in the final and follow-up assessments. The durations of VɹV syllables at the midway point of the therapy were longer. Cumulative tongue displacement increased in the final session. The average standard deviation was significantly higher in the middle and final assessments. The duration and tongue displacement measures illustrated how articulation therapy affected tongue movement and may be useful for outcomes research about articulation therapy.
对于r音错误的发音治疗效果通常通过听觉进行评估。然而，我们对与之相关的舌部运动变化的了解有限。本研究描述了6名儿童在10次/ɹ/发音治疗过程中的听觉、时长及舌部位移变化。其中4名参与者还接受了舌部形状的超声生物反馈。在治疗前、5次治疗后、最后一次治疗时以及1个月随访时记录语音和舌部运动。从听觉上看，听众在最后一次和随访评估中察觉到了改善，并将更多的发音归类为/ɹ/。治疗中期VɹV音节的时长更长。在最后一次治疗时累积舌部位移增加。在中期和最后评估中平均标准差显著更高。时长和舌部位移测量结果说明了发音治疗如何影响舌部运动，可能有助于发音治疗的疗效研究。
