Claessen Mary, Leitão Suze
School of Psychology and Speech Pathology, Curtin University of Technology, GPO Box U1987, Perth, WA 6845, Australia.
Int J Speech Lang Pathol. 2012 Jun;14(3):226-34. doi: 10.3109/17549507.2012.679312.
Low quality, imprecise phonological representations have been hypothesized as an underlying deficit in Specific Language Impairment (SLI). This research compared performance on a silent judgement task and a multisyllabic word naming task using the same 10 words, for 21 children with SLI (mean age 7;6), 21 age-matched (AM) (mean age 7;6) and 21 language-matched (LM) (mean age 5;6) peers. The children with SLI demonstrated significantly poorer performance on the judgement task than either AM or LM peers, while performance on the naming task followed a developmental sequence. There was no correlation between the ability to correctly reject inaccurate productions and the ability to correctly name the items. These results support the suggestion of separate input and output phonological representations and that speech output errors should not necessarily be interpreted as indicative of underlying weakness in phonological representations. The research also highlights the value of individually-designed tasks to measure the input phonological representations for specific words.
低质量、不精确的语音表征被认为是特定语言障碍（SLI）的一种潜在缺陷。本研究比较了21名患有特定语言障碍的儿童（平均年龄7岁6个月）、21名年龄匹配（AM）的儿童（平均年龄7岁6个月）和21名语言匹配（LM）的儿童（平均年龄5岁6个月）在使用相同10个单词的无声判断任务和多音节单词命名任务中的表现。患有特定语言障碍的儿童在判断任务中的表现明显比年龄匹配或语言匹配的同龄人差，而在命名任务中的表现则遵循发展顺序。正确拒绝不准确发音的能力与正确命名项目的能力之间没有相关性。这些结果支持了关于输入和输出语音表征相互独立的观点，并且语音输出错误不一定应被解释为语音表征存在潜在缺陷的指标。该研究还强调了单独设计任务以测量特定单词的输入语音表征的价值。
