The perceptual consequences of visual loss: 'positive' pathologies of vision
The perceptual consequences of visual loss: 'positive' pathologies of vision
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DOI：
10.1093/brain/122.7.1247
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发表时间：
1999-07-01
期刊：
影响因子：
14.5
通讯作者：
Howard, RJ
中科院分区：
文献类型：
--
作者：
ffytche, DH;Howard, RJ
50名患有退行性眼病继发的视觉幻觉和幻觉的患者报告了明显的刻板印象。问卷调查显示，五种以前公认的病理性视觉(持续性、幻视性视觉扩散、多视、近视变形和小/巨视)和三种新的类型(斜视、色觉亢进和树枝状视)，在一系列临床和实验环境中发生相同的视觉病理，表明它们反映了基本的视觉过程。已知的视觉皮质神经生理学有助于解释经验的现象学，并为基于神经生物学的积极和消极视觉知觉障碍的分类提供基础。
Fifty patients with visual hallucinations and illusions secondary to degenerative eye disease reported remarkably stereotyped experiences. Questionnaire responses revealed five previously recognized categories of pathological vision (perseveration, illusory visual spread, polyopia, prosopometamorphopsia and micro/macropsia) and three novel categories (tessellopsia, hyperchromatopsia and dendropsia), Identical pathologies of vision occur in a range of clinical and experimental settings, suggesting that they reflect fundamental visual processes. The known neurophysiology of the visual cortex helps explain the phenomenology of the experiences and provides the basis for a neurobiologically based classification of positive and negative visual perceptual disorders.