Cestnick L, Jerger J
Macquarie University, Sydney, Australia.
J Am Acad Audiol. 2000 Oct;11(9):501-13.
Relationships between lexical/nonlexical reading and auditory temporal processing were examined. Poor nonlexical readers (poor nonword readers, phonologic dyslexics) had difficulty across tone tasks irrespective of speed of presentation or mode of recall. Poor lexical readers (poor irregular word readers, surface dyslexics) had difficulty recalling tones in a sequence only when they were presented rapidly. Covariate analysis supported these findings, revealing that nonlexical (nonword) reading performance is associated with general auditory performance, but lexical (irregular word) reading is particularly associated with auditory sequencing. These findings suggest that phonologic and surface dyslexics perform differently on nonspeech auditory tasks. Because the two different types of poor readers did not differ significantly on tests of memory and learning but did differ on auditory tasks, we suggest that their performance on the auditory tasks may reflect auditory processing abnormalities as opposed to more general learning or memory difficulties. In addition to these observed qualitative differences between groups on the tone tasks, collapsing groups (all readers) revealed significant correlations between nonword reading and the Same-Different tone tasks in particular, whereas irregular word reading was not associated with any tone tasks; there also appears to be a quantitative relationship between nonlexical reading and Same-Different tone task performance as better or worse nonword reading predicts better or worse performance on the Same-Different tone tasks. In particular, it is conceivable that an auditory temporal processing deficit might contribute to poor nonword reading.
研究了词汇/非词汇阅读与听觉时间加工之间的关系。非词汇阅读能力差的读者（非词阅读能力差的读者、语音性阅读障碍者）在各种音调任务中都存在困难，无论呈现速度或回忆方式如何。词汇阅读能力差的读者（不规则词阅读能力差的读者、表层性阅读障碍者）只有在音调快速呈现时，才难以按顺序回忆音调。协变量分析支持了这些发现，表明非词汇（非词）阅读表现与一般听觉表现相关，但词汇（不规则词）阅读尤其与听觉序列相关。这些发现表明，语音性阅读障碍者和表层性阅读障碍者在非言语听觉任务中的表现不同。由于这两种不同类型的阅读能力差的读者在记忆和学习测试中没有显著差异，但在听觉任务中有差异，我们认为他们在听觉任务中的表现可能反映了听觉加工异常，而不是更普遍的学习或记忆困难。除了在音调任务中观察到的组间质性差异外，合并组（所有读者）显示，非词阅读与特别是异同音调任务之间存在显著相关性，而不规则词阅读与任何音调任务均无关联；非词汇阅读与异同音调任务表现之间似乎也存在定量关系，因为非词阅读的好坏预示着异同音调任务表现的好坏。特别是，可以想象听觉时间加工缺陷可能导致非词阅读能力差。
