Evans J L
Carnegie Mellon University, Pittsburgh, PA, USA.
J Speech Hear Res. 1996 Jun;39(3):655-60. doi: 10.1044/jshr.3903.655.
A performance-based model was employed to investigate the impact of discourse demands on the pattern of morphosyntactic deficits exhibited by children with Specific Language Impairments (SLI). The pattern of grammatical errors varied with respect to discourse demands for children with good receptive language abilities but remained stable and independent of changes in discourse demands for children with both expressive and receptive deficits. These findings suggest distinct deficit profiles for subgroups of children with SLI differing in receptive language abilities that are not evident when syntactic skills are investigated outside the context of ongoing spontaneous discourse.
采用基于表现的模型来研究话语要求对特定语言障碍（SLI）儿童所表现出的形态句法缺陷模式的影响。对于具有良好接受性语言能力的儿童，语法错误模式随话语要求而变化，但对于同时具有表达性和接受性缺陷的儿童，语法错误模式保持稳定且不受话语要求变化的影响。这些发现表明，在接受性语言能力方面存在差异的SLI儿童亚组具有不同的缺陷特征，而在持续的自发话语背景之外研究句法技能时，这些特征并不明显。
