Bressmann Tim, Radovanovic Bojana, Kulkarni Gajanan V, Klaiman Paula, Fisher David
Department of Speech-Language Pathology, University of Toronto, Toronto, ON, Canada.
Clin Linguist Phon. 2011 Nov;25(11-12):1028-33. doi: 10.3109/02699206.2011.599472. Epub 2011 Jul 25.
Ultrasound imaging was used to investigate the articulation of the voiceless velar stop [k] in five speakers with compensatory articulation related to cleft palate. The perceptual evaluation of the acoustic realization and the visual assessment of the tongue movement for the target sound were made by three examiners. The analysis revealed a variety of different compensatory strategies that included glottal stops, pharyngeal stops, midpalatal stops and glottal and velar co-productions. One patient produced palatal click sounds together with a midpalatal stop. The ultrasound imaging also revealed covert articulatory movements that would have been missed in a purely perceptual analysis. The analysis of the ultrasound images points to subphonemic aspects of cleft-type compensatory articulation that are important to understand for speech therapy.
超声成像被用于研究五名患有与腭裂相关的代偿性发音的说话者发清辅音软腭塞音[k]的情况。三名考官对目标音的声学实现进行了感知评估，并对舌部运动进行了视觉评估。分析揭示了多种不同的代偿策略，包括声门塞音、咽塞音、中腭塞音以及声门和软腭共同发音。一名患者在发中腭塞音的同时还发出了腭部咔哒声。超声成像还揭示了一些隐蔽的发音动作，这些动作在单纯的感知分析中可能会被忽略。对超声图像的分析指出了腭裂型代偿性发音的亚音位方面，这对于言语治疗来说很重要，需要加以理解。
