Baylis G C, Driver J, Baylis L L, Rafal R D
Department of Psychology, University of South Carolina, Columbia 29208.
Neuropsychologia. 1994 Oct;32(10):1273-86. doi: 10.1016/0028-3932(94)90109-0.
A patient with bilateral parietal damage, and Balint's syndrome, named visual letters. These were presented individually or within four-letter strings. Solitary letters were identified very accurately. In the case of strings, more letters were correctly reported for words than for nonwords, and more for pronounceable than for unpronounceable nonwords. When required to read words as a whole, performance was better than predicted by letter-reports. These results extend the object-based limitation apparent in Balint's syndrome to the case of reading. The component letters of a string benefit when they form a familiar global object, rather than requiring representation as multiple separate objects. The patient occasionally made homophonic errors when listing the letters in a visual word. This suggests an attempt to bypass visual simultanagnosia by treating the string as a single object, deriving a holistic phonological code for it, and then decomposing this into component letters via spelling rules.
一名患有双侧顶叶损伤及巴林特综合征的患者对视觉呈现的字母进行了命名。这些字母单独呈现或组成四个字母的字符串呈现。单个字母的识别非常准确。对于字符串，与非单词相比，单词中能正确报告出的字母更多；与不可发音的非单词相比，可发音的非单词中能正确报告出的字母更多。当要求整体阅读单词时，表现优于根据字母报告所预测的情况。这些结果将巴林特综合征中明显基于对象的局限性扩展到了阅读领域。当字符串中的组成字母形成一个熟悉的整体对象时，它们会从中受益，而不是需要被表征为多个单独的对象。该患者在列出视觉单词中的字母时偶尔会出现同音错误。这表明患者试图通过将字符串视为单个对象来绕过视觉统觉失认，为其推导一个整体的语音代码，然后通过拼写规则将其分解为组成字母。
