Seeing without the occipito-parietal cortex: Simultagnosia as a shrinkage of the attentional visual field.
Seeing without the occipito-parietal cortex: Simultagnosia as a shrinkage of the attentional visual field.
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DOI：
10.1155/2004/836830
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发表时间：
2004
影响因子：
2.8
通讯作者：
Henaff MA
中科院分区：
文献类型：
--
作者：
Michel F;Henaff MA
双顶病变后，患者AT表现出严重的无法将注意力重新定位在视野内，视野检查证明接近正常。一个实验方法与任务测试的视觉空间注意力表明收缩的A.T.的注意力视野。随着她的视觉注意力缩小到一种功能性隧道视觉，患者表现出失认症（Wolpert，1924），这是Balint在1909年描述的一种症状，称为“凝视”的精神麻痹。与此形成鲜明对比的是，AT表现出对复杂自然场景的有效和毫不费力的感知，根据最近对正常受试者的研究，这几乎不需要任何注意力资源。
Following bi-parietal lesions patient AT showed a severe inability to relocate her attention within a visual field which perimetry proved to be near-normal. An experimental approach with tasks testing visuo-spatial attention demonstrated a shrinkage of A.T.’s attentional visual field. With her visual attention narrowed to a kind of functional tunnel vision, the patient exhibited simultanagnosia (Wolpert, 1924), a symptom previously described in 1909 by Balint under the label of Psychic paralysis of “Gaze”. In striking contrast AT showed an efficient and effortless perception of complex natural scenes, which, according to recent work in normal subjects, necessitate few if any attentional resources.