Cogn Neuropsychol. 2002 May 1;19(3):193-206. doi: 10.1080/02643290143000132.
Hanley and Kay (1997) reported the case of a patient (PS) who showed effects of imageability on tests of auditory repetition, but whose errors were phonological rather than semantic. They argued that this pattern of performance could be explained in terms of a partial impairment to both lexical and nonlexical repetition routes so long as some interaction between the two routes was allowed, consistent with Hillis and Caramazza's (1991) "summation" hypothesis. The present paper investigates the performance of a new patient (MF) who also makes a large number of phonological errors when repeating words of low imageability. MF performs at a similar level to PS on tests of picture naming, but is less impaired than PS when repeating words and nonwords. It is argued that the pattern of performance that MF demonstrates on these and on a wide range of other tests of word production and comprehension can be readily accommodated in terms of the dual-route account of impaired auditory repetition that Hanley and Kay (1997) put forward. However, we argue that it is difficult to explain these patients' performance in terms of models of auditory word repetition that do not incorporate a separate nonlexical repetition route (Dell, Schwartz, Martin, Saffran, & Gagnon, 1997; Foygel & Dell, 2000).
汉利和凯（1997）报告了一例患者（PS）的情况，该患者在听觉重复测试中表现出形象性的影响，但错误是语音而非语义。他们认为，只要允许两种途径之间存在某种相互作用，这种表现模式就可以用词汇和非词汇重复途径的部分损伤来解释，这与希利斯和卡拉马扎（1991）的“总和”假设一致。本文研究了另一位新患者（MF）的表现，他在重复低形象性单词时也会犯大量语音错误。MF 在图片命名测试中的表现与 PS 相似，但在重复单词和非单词时的损伤程度不如 PS 严重。我们认为，MF 在这些测试以及广泛的其他词汇产生和理解测试中的表现模式，可以根据汉利和凯（1997）提出的听觉重复受损的双重途径解释来很好地解释。然而，我们认为，很难用不包含单独的非词汇重复途径的听觉单词重复模型来解释这些患者的表现（戴尔、施瓦茨、马丁、萨夫兰和加农，1997；福格尔和戴尔，2000）。
