Fukuzawa K, Itoh M, Sasanuma S, Suzuki T, Fukusako Y, Masui T
Department of Rehabilitation Research, Tokyo Metropolitan Institute of Gerontology, Japan.
Brain Lang. 1988 May;34(1):98-126. doi: 10.1016/0093-934x(88)90126-5.
This research examined the structure of internal representation and the conceptual operation of color in two pure alexic cases (Case I and Case II) with color naming defects. Experiment I investigated the structure of the internal representation of different kinds of colors using a similarity judgment task. Experiment II examined categorical judgments of perceived colors using a two-alternative-forced choice task. Experiment III tested the classification of perceived colors using a color sorting task. The performance of Case I essentially fell within the normal range while the results of Case II showed some impairment in the conceptual operation of color. Analysis of the responses obtained from these experiments indicated that the color naming defects in Case I can be explained in terms of visual-verbal disconnection. However, the naming defects in Case II reflect disfunction in some other higher cortical processes coupled with visual-verbal disconnection.
本研究考察了两名存在颜色命名缺陷的纯失读症患者（病例一和病例二）的内部表征结构和颜色概念操作。实验一使用相似性判断任务研究了不同颜色的内部表征结构。实验二使用二选一强迫选择任务检验了对感知颜色的分类判断。实验三使用颜色分类任务测试了对感知颜色的分类。病例一的表现基本处于正常范围内，而病例二的结果显示在颜色概念操作方面存在一些损伤。对这些实验所得反应的分析表明，病例一的颜色命名缺陷可以用视觉-言语脱节来解释。然而，病例二的命名缺陷反映了一些其他高级皮层过程的功能失调以及视觉-言语脱节。
