Grela Bernard G
Department of Communication Sciences, 850 Bolton Road, Unit 1085, University of Connecticut, Storrs, Connecticut 06269, USA.
Clin Linguist Phon. 2003 Mar;17(2):153-69. doi: 10.1080/0269920031000061812.
Ten children with specific language impairment (SLI) were compared to two groups of normally developing children for the production of grammatical subjects in sentences of varying length and argument structure complexity. The normal controls consisted of a group of younger children matched for mean length of utterance (MLU) and a group matched for chronological age. The participants were asked to produce sentences of varied argument structure complexity using a story completion task. The results indicated that both the children with SLI and the MLU controls omitted more subject arguments in the ditransitive sentences than in sentences with intransitive and ditransitive verbs. In addition, more children with SLI omitted subject arguments as linguistic complexity increased. This effect was not found for the normal age control children who never omitted subjects, regardless of increases in argument structure complexity. These results support the notion that grammatical errors in both children with SLI and their younger, normal counterparts may be due to problems with processing complex linguistic information rather than with limitations in linguistic knowledge.
将10名特定语言障碍（SLI）儿童与两组正常发育儿童进行比较，以研究他们在不同长度和论元结构复杂度的句子中生成语法主语的情况。正常对照组包括一组根据平均语句长度（MLU）匹配的年幼儿童和一组根据实际年龄匹配的儿童。参与者被要求使用故事完成任务生成不同论元结构复杂度的句子。结果表明，患有SLI的儿童和MLU对照组在双及物句子中比在不及物动词和双及物动词的句子中省略更多的主语论元。此外，随着语言复杂度的增加，更多患有SLI的儿童省略主语论元。对于正常年龄对照组儿童，无论论元结构复杂度如何增加，他们都从未省略主语，未发现这种效应。这些结果支持了这样一种观点，即患有SLI的儿童及其年龄较小的正常同龄人中的语法错误可能是由于处理复杂语言信息的问题，而不是语言知识的限制。
