SHIFTING VISUAL-ATTENTION BETWEEN OBJECTS AND LOCATIONS - EVIDENCE FROM NORMAL AND PARIETAL LESION SUBJECTS
SHIFTING VISUAL-ATTENTION BETWEEN OBJECTS AND LOCATIONS - EVIDENCE FROM NORMAL AND PARIETAL LESION SUBJECTS
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DOI：
10.1037/0096-3445.123.2.161
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发表时间：
1994-06-01
影响因子：
4.1
通讯作者：
RAFAL, RD
中科院分区：
文献类型：
--
作者：
EGLY, R;DRIVER, J;RAFAL, RD
空间和物体为基础的注意组件进行了检查，在神经正常和顶叶病变的主题，谁检测到亮度变化的4个端部的2个轮廓矩形。一个矩形端precued（75%有效），无效的线索试验，目标出现在另一端的提示矩形或在1端的uncued矩形。对于法线，无效提示的成本对于未提示矩形中的目标更大，这表明基于对象的组件。右半球和左半球的患者都显示出对侧病变目标的成本更高。对于右半球患者，对侧病灶和同侧病灶目标的对象成本是相等的，表明空间缺陷，而左半球患者对侧病灶目标的对象成本较大，表明对象缺陷。
Space- and object-based attention components were examined in neurologically normal and parietal-lesion subjects, who detected a luminance change at 1 of 4 ends of 2 outline rectangles. One rectangle end was precued (75% valid); on invalid-cue trials, the target appeared at the other end of the cued rectangle or at 1 end of the uncued rectangle. For normals, the cost for invalid cues was greater for targets in the uncued rectangle, indicating an object-based component. Both right- and left-hemisphere patients showed costs that were greater for contralesional targets. For right-hemisphere patients, the object cost was equivalent for contralesional and ipsilesional targets, indicating a spatial deficit, whereas the object cost for left-hemisphere patients was larger for contralesional targets, indicating an object deficit.