Preston Jonathan L, Edwards Mary Louise
Haskins Laboratories, New Haven, CT 06511, USA.
Clin Linguist Phon. 2009 Apr;23(4):301-18. doi: 10.1080/02699200802680833.
Children with residual speech sound errors are often underserved clinically, yet there has been a lack of recent research elucidating the specific deficits in this population. Adolescents aged 10-14 with residual speech sound errors (RE) that included rhotics were compared to normally speaking peers on tasks assessing speed and accuracy of speech production. The two groups were evaluated on an oral diadochokinetic task, which required rapid production of the trisyllable /p Lambda t Lambda k Lambda/, and two rapid naming tasks: monosyllabic letter names and multisyllabic picture names. No significant group differences were observed in the speed of trisyllables on the DDK task, whether examining all attempts or only correct productions. However, the RE group was less accurate and more variable in their production of the trisyllables. In addition, the RE group was slower and phonologically less accurate in rapidly naming multisyllabic pictures, but not in naming letters. A combination of speed and accuracy measures from these tasks revealed relatively little overlap between groups. Results suggest that both speed and accuracy may be impaired in adolescents with RE, although the underlying causal mechanisms require further exploration.
有残留语音错误的儿童在临床上往往得不到充分治疗，但最近缺乏研究阐明这一人群的具体缺陷。将10 - 14岁有包括r音在内的残留语音错误（RE）的青少年与正常说话的同龄人在评估言语产生速度和准确性的任务上进行比较。两组在一项口腔连续运动言语任务中接受评估，该任务要求快速发出三音节/p Λ t Λ k Λ/，以及两项快速命名任务：单音节字母名称和多音节图片名称。在DDK任务中，无论检查所有尝试还是仅检查正确发音，三音节的速度在两组之间均未观察到显著差异。然而，RE组在发出三音节时准确性较低且变异性较大。此外，RE组在快速命名多音节图片时速度较慢且语音准确性较低，但在命名字母时并非如此。这些任务的速度和准确性测量结果显示两组之间的重叠相对较少。结果表明，有RE的青少年的速度和准确性可能都会受损，尽管潜在的因果机制需要进一步探索。
