Miller Carol A, Deevy Patricia
Department of Communication Sciences and Disorders, The Pennsylvania State University, University Park 16802, USA.
J Speech Lang Hear Res. 2003 Oct;46(5):1154-65. doi: 10.1044/1092-4388(2003/090).
Children with specific language impairment (SLI) show inconsistent use of grammatical morphology. Children who are developing language typically also show a period during which they produce grammatical morphemes inconsistently. Various theories claim that both young typically developing children and children with SLI achieve correct production through memorization of some inflected forms (M. Gopnik, 1997; M. Tomasello, 2000a, 2000b). Adapting a method introduced by C. Miller and L. Leonard (1998), the authors investigated the use of present tense third singular -s by 24 typically developing preschoolers and 36 preschoolers with SLI. Each group was divided into 2 mean length of utterance (MLU) levels. Group and individual data provided little evidence that memorization could explain the correct productions of the third singular morpheme for either children with SLI or typically developing children, and there was no difference between children with higher and lower MLUs.
患有特定语言障碍（SLI）的儿童在语法形态的使用上并不一致。正在发展语言能力的儿童通常也会经历一个阶段，在此期间他们对语法语素的使用并不一致。各种理论认为，正常发育的幼儿和患有SLI的儿童都是通过记忆一些变形形式来实现正确表达的（M. 戈皮尼克，1997；M. 托马塞洛，2000a，2000b）。作者采用了C. 米勒和L. 伦纳德（1998）引入的一种方法，对24名正常发育的学龄前儿童和36名患有SLI的学龄前儿童使用一般现在时第三人称单数-s的情况进行了研究。每个组又根据平均语句长度（MLU）分为两个水平。组内和个体数据几乎没有证据表明记忆可以解释患有SLI的儿童或正常发育儿童对第三人称单数语素的正确表达，而且MLU较高和较低的儿童之间没有差异。
