Gibbon F E, Crampin L
Department of Speech and Language Sciences, Queen Margaret University College, Edinburgh, Scotland.
Cleft Palate Craniofac J. 2001 Mar;38(2):96-105. doi: 10.1597/1545-1569_2001_038_0096_aeiomp_2.0.co_2.
Middorsum palatal stops are compensatory articulations that occur relatively frequently in cleft palate speech. This study used electropalatographic (EPG) and acoustic data to investigate /t/ and /k/ targets produced as middorsum palatal stops ([c]) by an adult with an articulation disorder associated with a repaired cleft palate.
Two novel observations were made from the instrumental data. First, although /t/ and /k/ targets were judged by phonetically trained listeners as homophonous (i.e., both produced as [c]), the EPG data revealed that the place of articulation for the [c] produced for /t/ was more anterior than the place of articulation for the [c] produced for /k/. Second, production of palatal stops involved lateral release followed by a variable period of lateral friction. Measurements made from the instrumental data quantified the temporal extent of lateral friction during the aspiration period.
These observations merit further systematic investigation in cleft palate speech, and the procedures reported in this study are considered appropriate for such future research.
腭中嵴塞音是腭裂语音中相对常见的代偿性发音。本研究使用电子腭图（EPG）和声学数据，调查一名患有与腭裂修复相关的构音障碍的成年人将/t/和/k/目标音发成腭中嵴塞音([c])的情况。
从仪器数据中得出了两个新的观察结果。首先，尽管经过语音训练的听众判断/t/和/k/目标音为同音异形（即都发成[c]），但EPG数据显示，/t/发成的[c]的发音部位比/k/发成的[c]的发音部位更靠前。其次，腭塞音的发音包括侧方释放，随后是一段可变时长的侧方摩擦。从仪器数据中进行的测量量化了送气期侧方摩擦的时间范围。
这些观察结果值得在腭裂语音中进行进一步系统研究，本研究报告的程序被认为适用于此类未来研究。
