Purdue University.
J Child Lang. 2013 Nov;40(5):1032-56. doi: 10.1017/S0305000912000505. Epub 2012 Nov 9.
The aim of this study was to determine, using speech error and articulatory analyses, whether the binary distinction between iambs and trochees should be extended to include additional prosodic subcategories. Adults, children who are normally developing, and children with specific language impairment (SLI) participated. Children with SLI were included because they exhibit prosodic and motor deficits. Children, especially those with SLI, showed the expected increase in omission errors in weak initial syllables. Movement patterning analyses revealed that speakers produced differentiated articulatory templates beyond the broad categories of iamb and trochee. Finally, weak-weak prosodic sequences that crossed word boundaries showed increased articulatory variability when compared with strong-weak alternations. The binary distinction between iamb and trochee may be insufficient, with additional systematic prosodic subcategories evident, even in young children with SLI. Findings support increased interactivity in language processing.
本研究旨在通过语音错误和发音分析，确定是否应将长短音的二元区分扩展到包括其他韵律子类别。成人、正常发育的儿童和特定语言障碍（SLI）儿童参与了研究。选择患有 SLI 的儿童是因为他们表现出韵律和运动缺陷。儿童，尤其是那些患有 SLI 的儿童，在弱初始音节中表现出预期的省略错误增加。运动模式分析表明，说话人产生了区分性的发音模板，超出了长短音的广义类别。最后，与强-弱交替相比，跨越词边界的弱-弱韵律序列显示出更大的发音可变性。长短音的二元区分可能是不够的，甚至在患有 SLI 的年幼儿童中也存在其他系统的韵律子类别。研究结果支持语言处理中的交互作用增加。
