Di Pellegrino G
Neurological Department, University of Modena, Italy.
Neuropsychologia. 1995 Mar;33(3):353-8. doi: 10.1016/0028-3932(94)00106-y.
A patient (C.B.) with severe left visuo-spatial neglect and hemianopia after right hemisphere stroke was tested on three conditions of a clock-drawing task. Either on spontaneous drawing or when the number sequence was provided by the experimenter, C.B. drew a clockface with left-sided numbers transposed to the right side of the dial. By contrast, when each number was drawn on a separate dial, its location was correct and there was no transposition. Directional hypokinesia or a representational deficit cannot explain these effects. It is proposed that a deficit in disengaging attention from right-sided visual stimuli plays a critical role in some forms of number transpositions.
一名右半球中风后出现严重左侧视觉空间忽视和偏盲的患者（C.B.），在一项画钟任务的三种条件下接受了测试。无论是自发画图还是由实验者提供数字序列时，C.B.画的钟面都将左侧数字移到了表盘右侧。相比之下，当每个数字在单独的表盘上绘制时，其位置是正确的，没有换位。定向运动减退或表征缺陷无法解释这些效应。有人提出，在某些形式的数字换位中，无法将注意力从右侧视觉刺激中脱离出来的缺陷起着关键作用。
