Visual Agnosia: A Case of Reduced Attentional “Spotlight”?
Visual Agnosia: A Case of Reduced Attentional “Spotlight”?
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视觉失认症：注意力“聚光灯”减少的案例？
DOI：
10.1016/s0010-9452(13)80230-4
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发表时间：
1992
期刊：
影响因子：
3.6
通讯作者：
R. D. Bleser
中科院分区：
文献类型：
--
作者：
J. Semmes;R. D. Bleser
一个病例研究是一个早老性痴呆患者，从发病的主要临床特征是视觉失认症。患者的视觉失认症的特点进行了调查，根据她明显使用的“功能的功能”的策略，以确定对象。各种任务的结果表明，患者无法使用全局形状信息或其他粗略定义的属性线索特征的“广角”注意力处理阶段（Treisman，1988）在物体识别。相反，患者似乎依赖于物体的“部分”或识别特征来识别物体。患者表现出显着的改善时，图纸的尺寸减小的大小，从而表明，该障碍可能是功能性本地化的减少患者的注意力的“聚光灯”。
A case study is presented of a patient with presenile dementia, for whom the dominant clinical feature from onset was a visual agnosia. The characteristics of the patient’s visual agnosia were investigated in light of her apparent use of a “feature-by-feature” strategy to identify objects. Results from various tasks showed that the patient was unable to use global shape information or other grossly defined property cues characteristic of a “wide angle” attentional processing stage (Treisman, 1988) in object recognition. The patient appeared instead to rely on ‘parts’ or identifying features of the objects for object recognition. The patient showed significant improvement when the size of the drawing was reduced in size, thus suggesting that the disorder may be functionally localized to a reduction of the patient’s attentional “spotlight”.