儿童、青少年和成人舌与腭接触模式及变异性的电腭图评估
Electropalatographic assessment of tongue-to-palate contact patterns and variability in children, adolescents, and adults.
作者信息
Cheng Hei Yan, Murdoch Bruce E, Goozée Justine V, Scott Dion
机构信息
Division of Speech Pathology, The University of Queensland, Brisbane, Queensland 4072 Australia.
出版信息
J Speech Lang Hear Res. 2007 Apr;50(2):375-92. doi: 10.1044/1092-4388(2007/027).
PURPOSE
To investigate the developmental time course of tongue-to-palate contact patterns during speech from childhood to adulthood using electropalatography (EPG) and a comprehensive profile of data analysis.
METHOD
Tongue-to-palate contacts were recorded during productions of /t/, /l/, /s/, and /k/ in 48 children, adolescents and adults (aged 6-38 years) using the Reading Electropalatograph system.
RESULTS
A protracted course of development for lingual control was indicated, with significant changes occurring until age 11 years; the adolescent period was in turn characterized by continual refinement of articulatory control. With maturity, a reduction in the amount of palatal contact and an anterior shift in the place of articulation was evident during anterior consonant productions, whereas the tongue-back-to-palate contact pattern became more consistent for the velar stop /k/.
CONCLUSION
These results support that maturation of the speech motor system is nonuniform.
目的
利用电子腭图（EPG）和全面的数据分析概况，研究从儿童期到成年期言语过程中舌与腭接触模式的发育时间进程。
方法
使用Reading电子腭图系统，记录了48名儿童、青少年和成年人（年龄6 - 38岁）在发/t/、/l/、/s/和/k/音时舌与腭的接触情况。
结果
表明舌控制的发育过程较为漫长，直到11岁才会发生显著变化；青少年时期的特点是发音控制不断细化。随着成熟，在前辅音发音过程中，腭接触量减少，发音位置向前移动，而软腭塞音/k/的舌背与腭接触模式变得更加一致。
结论
这些结果支持言语运动系统的成熟是不均匀的。
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