Lundeborg Inger, Nordin Elin, Zeipel-Stjerna Marie, McAllister Anita
a Department of Clinical and Experimental Medicine , Division of Speech and Language Pathology, Linköping University , Sweden.
b Department of Clinical Science , Intervention and Technology, Karolinska Institute , Stockholm , Sweden.
Logoped Phoniatr Vocol. 2015 Dec;40(4):149-55. doi: 10.3109/14015439.2014.934276. Epub 2014 Jul 4.
Mastering spatial and temporal co-ordination in speech production is a challenge for children. Voice onset time (VOT) reflects timing in speech. The objective was to study VOT in Swedish children with a diagnosed phonological impairment and compare results with normative data. Thus 38 children, aged 4-11 years, in three age-groups were audio-recorded when producing minimal pairs with the plosives /p b t d k g/. Waveforms and spectrograms were analysed. Results show that children with phonological impairment produced plosives with deviant VOT values and greater variability compared to normative data. No developmental trend was seen with increasing age. Also, no relationship was found between VOT values and degree of impairment measured by percentage phonemes correct. Furthermore no relation was found between number of errors on auditory discrimination of nine minimal pairs with the different plosives and number of deviant VOT. Findings were interpreted as displaying motor co-ordination difficulties.
掌握言语产生中的时空协调对儿童来说是一项挑战。语音起始时间（VOT）反映了言语中的时间安排。目的是研究被诊断为语音障碍的瑞典儿童的VOT，并将结果与标准数据进行比较。因此，对三个年龄组的38名4至11岁儿童在发爆破音/p b t d k g/的最小对立体时进行了音频录制。对波形和声谱图进行了分析。结果表明，与标准数据相比，语音障碍儿童发爆破音时的VOT值异常且变异性更大。未发现随年龄增长的发展趋势。此外，VOT值与以正确音素百分比衡量的损伤程度之间没有关系。此外，在对九个包含不同爆破音的最小对立体进行听觉辨别时的错误数量与异常VOT数量之间也没有关系。研究结果被解释为显示出运动协调困难。
