Archibald Lisa M D, Gathercole Susan E
Department of Psychology, University of Western Ontario, London, Canada.
J Speech Lang Hear Res. 2006 Oct;49(5):970-83. doi: 10.1044/1092-4388(2006/070).
This study compared performance of children on 2 tests of nonword repetition to investigate the factors that may contribute to the well-documented nonword repetition deficit in specific language impairment (SLI).
Twelve children with SLI age 7 to 11 years, 12 age-matched control children, and 12 control children matched for language ability completed 2 tests of nonword repetition: the Children's Test of Nonword Repetition (CNRep) and the Nonword Repetition Test (NRT).
The children with SLI performed significantly more poorly on both tests than typically developing children of the same age. The SLI group was impaired on the CNRep but not the NRT relative to younger children with similar language abilities when adjustments were made for differences in general cognitive ability. The children with SLI repeated the lengthiest nonwords and the nonwords containing consonant clusters significantly less accurately than the control groups.
The evidence suggests that the nonword repetition deficit in SLI may arise from a number of factors, including verbal short-term memory, lexical knowledge, and output processes.
本研究比较了儿童在两项非词重复测试中的表现，以探究可能导致特定语言障碍（SLI）中已被充分记录的非词重复缺陷的因素。
12名7至11岁的SLI儿童、12名年龄匹配的对照儿童以及12名语言能力匹配的对照儿童完成了两项非词重复测试：儿童非词重复测试（CNRep）和非词重复测试（NRT）。
SLI儿童在两项测试中的表现均显著低于同龄的正常发育儿童。在对一般认知能力差异进行调整后，相对于语言能力相似的年幼儿童，SLI组在CNRep测试中表现受损，但在NRT测试中未受损。SLI儿童重复最长非词和包含辅音连缀的非词的准确性明显低于对照组。
证据表明，SLI中的非词重复缺陷可能由多种因素引起，包括言语短期记忆、词汇知识和输出过程。
