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首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >Cortical processing of a brightness illusion
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Cortical processing of a brightness illusion

机译：皮质处理亮度错觉

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摘要

Several brightness illusions indicate that borders can affect the perception of surfaces dramatically. In the Cornsweet illusion, two equiluminant surfaces appear to be different in brightness because of the contrast border between them. Here, we report the existence of cells in monkey visual cortex that respond to such an "illusory" brightness. We find that luminance responsive cells are located in color-activated regions (cytochrome oxidase blobs and bridges) of primary visual cortex (V1), whereas Cornsweet responsive cells are found preferentially in the color-activated regions (thin stripes) of second visual area (V2). This colocalization of brightness and color processing within V1 and V2 suggests a segregation of contour and surface processing in early visual pathways and a hierarchy of brightness information processing from V1 to V2 in monkeys.
机译：几种亮度错觉表明边界会极大地影响表面的感知。在Cornsweet幻觉中，由于两个等光面之间的对比度边界，它们的亮度似乎不同。在这里，我们报告了在猴子视觉皮层中存在对这种“虚幻”亮度做出响应的细胞的存在。我们发现亮度反应性细胞位于主要视觉皮层（V1）的颜色激活区域（细胞色素氧化酶斑点和桥）中，而Cornsweet反应性细胞优先位于第二视觉区域的颜色激活区域（细条纹）中（ V2）。 V1和V2中亮度和颜色处理的这种共定位提示了早期视觉路径中轮廓和表面处理的分离以及猴子中从V1到V2的亮度信息处理的层次结构。

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