Voiceless alveolar stop coarticulation in typically developing 5-year-olds and 13-year-olds.
Voiceless alveolar stop coarticulation in typically developing 5-year-olds and 13-year-olds.
复制标题
在正常发育的 5 岁和 13 岁儿童中，清音肺泡会停止协同发音。
DOI：
10.1080/02699206.2016.1268209
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发表时间：
2017
影响因子：
1.2
通讯作者：
Zharkova N
中科院分区：
文献类型：
--
作者：
Zharkova N
本研究比较了5岁儿童和13岁青少年在[t]闭合偏移时的元音-辅音舌协同发音。该研究旨在确定，在关闭结束时，来自较年轻年龄组的儿童是否会像青少年一样调整舌形以适应以下元音。10个5岁和10个13岁的孩子，都说苏格兰标准英语，在一个载体短语中用元音[i]和[a]产生[t]-元音音节。基于正中矢状超声成像数据的舌形测量被用来比较各组之间的预期协同发音和说话者内变异性。这两个年龄组的舌背聚束的程度改变，以coarticulate以下元音的辅音。与青少年不同，5岁的儿童并没有始终如一地修改舌曲线内的聚束位置，以适应即将出现的元音的舌形。在较年轻的年龄组中，代币之间的变异性显著更大。结果表明，元音上的[t] coarticulatory模式产生的典型发展中国家的儿童受到影响的发展的运动控制，与发音限制舌头限制的程度，在5岁的儿童的舌coarticulatory。典型的协同发音发展的研究结果是相关的临床实践，他们强调需要更详细的描述语音的语音特征如何影响协同发音在整个童年。
In this study, vowel-on-consonant lingual coarticulation at [t] closure offset was compared in 5-year-old children and 13-year-old adolescents. The study aimed to establish whether, by the end of the closure, children from the younger age group adjust the tongue shape to the following vowels to the same extent as adolescents. Ten 5-year-olds and ten 13-year-olds, all speakers of Scottish Standard English, produced [t]-vowel syllables with the vowels [i] and [a], in a carrier phrase. Measures of tongue shape based on midsagittal ultrasound imaging data were used to compare anticipatory coarticulation and within-speaker variability across groups. Both age groups changed the extent of tongue dorsum bunching in order to coarticulate the consonant with the following vowels. The 5-year-old children, unlike the adolescents, did not consistently modify the bunching location within the tongue curve to accommodate the tongue shape to that of the upcoming vowel. Token-to-token variability was significantly greater in the younger age group. The results suggest that vowel-on-[t] coarticulatory patterns produced by typically developing children are affected by the development of motor control, with articulatory constraints on the tongue limiting the extent of lingual coarticulation in 5-year-old children. The findings on typical coarticulation development are relevant for clinical practice, and they highlight the need for more detailed descriptions of how phonetic characteristics of speech sounds affect coarticulation throughout childhood.