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Disorder of higher visual function

热1 zhurenjing 添加于 2011-2-6 14:59 | 2235 次阅读 | 0 个评论

作者
Barton JJS
摘要
Purpose of review Both monkey and human neuroimaging studies show that visual processing beyond the striate cortex involves a highly complex network of regions with modular functions. Lesions within this network lead to specific clinical syndromes. In this review we discuss studies on blindsight, which is the ability of remaining regions to support vision in the absence of striate cortex or visual awareness, recent work on 'ventral stream' syndromes such as object agnosia, alexia, prosopagnosia, and topographagnosia, which follow damage to medial occipitotemporal structures, and simultanagnosia, the classic 'dorsal stream' deficit related to bilateral occipitoparietal lesions. Recent findings We highlight work on the anatomic basis of blindsight, the recent description of the new disorder developmental topographic disorientation, and studies contrasting global and local perception in simultanagnosia. Summary These studies advance our understanding of the mechanisms of complex visual processing and provide an important neuropsychological complement to our expanding knowledge about vision from functional neuroimaging.
详细资料
- 文献种类: Journal Article
- 期刊名称: Current Opinion in Neurology
- 期刊缩写: Current Opinion in Neurology
- 期卷页: 2011年第24卷第1期 1-5页
- ISBN: 1350-7540
学科领域生物医药 » 临床医学
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