Katz R B, Sevush S
Brain Lang. 1987 Jul;31(2):252-66. doi: 10.1016/0093-934x(87)90073-3.
Accurate reading of irregular words is generally assumed to require intact lexical reading mechanisms. A nonlexical mechanism is usually deemed insufficient for this type of stimulus processing. The maximum level of accuracy attainable by nonlexical means, however, has not been adequately evaluated. We now describe a patient with acquired dyslexia due to impaired lexical reading mechanisms who retained the ability to read irregular words. The patient's poor performance on tasks requiring lexical decision and access to word meaning provided evidence that his lexical mechanisms were impaired. Nevertheless, errors on irregular words became apparent only with special tests that circumvented the patient's ability to use his intact speaking vocabulary to ensure that reading responses were words. The results demonstrate that relatively accurate reading of irregular words is possible despite damage to lexical mechanisms and that this can be achieved by filtering potential responses through the speaking vocabulary.
通常认为，准确阅读不规则单词需要完整的词汇阅读机制。对于这类刺激处理，非词汇机制通常被认为是不够的。然而，非词汇方式所能达到的最大准确率尚未得到充分评估。我们现在描述一位因词汇阅读机制受损而患有后天性阅读障碍的患者，他仍保留阅读不规则单词的能力。该患者在需要进行词汇判断和获取词义的任务上表现不佳，这证明他的词汇机制受损。然而，只有通过特殊测试才能发现他在不规则单词上的错误，这些测试规避了患者使用其完整口语词汇来确保阅读反应是单词的能力。结果表明，尽管词汇机制受损，但仍有可能相对准确地阅读不规则单词，并且可以通过口语词汇过滤潜在反应来实现这一点。
