A CASE OF INTEGRATIVE VISUAL AGNOSIA
A CASE OF INTEGRATIVE VISUAL AGNOSIA
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DOI：
10.1093/brain/110.6.1431
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发表时间：
1987-12-01
期刊：
影响因子：
14.5
通讯作者：
HUMPHREYS, GW
中科院分区：
文献类型：
--
作者：
RIDDOCH, MJ;HUMPHREYS, GW
一个单一的病例研究的患者视觉失认症。该患者在视觉物体识别方面有明显的障碍，沿着有良好的触觉物体识别和保留的复制能力。详细的调查表明受损的感知过程，与患者的识别强烈影响的刺激曝光的持续时间和使用重叠的数字。然而，他储存的物体知识被证明是完整的。结果表明，失认症可能是由一个特定的缺陷，在整合形式的信息;和视觉对象识别的输入描述，在这个病人中断，功能上是独立的存储对象的描述，这是完整的。理解视觉失认症和正常的视觉物体识别理论的结果的影响进行了讨论。
A single case study of a patient with visual agnosia is presented. The patient had a marked impairment in visual object recognition along with good tactile object identification and a preserved ability to copy. Detailed investigations demonstrated impaired perceptual processes, with the patient's identification strongly affected by duration of stimulus exposure and by using overlapping figures. However, his stored knowledge of objects was shown to be intact. The results demonstrate that agnosia may be determined by a specific deficit in integrating form information; and that the input description for visual object recognition, disrupted in this patient, is functionally separate from stored object descriptions, which are intact. The implications of the results for understanding visual agnosia and for theories of normal visual object recognition are discussed.