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首页> 外文期刊>Neuron >Neuronal mechanisms for illusory brightness perception in humans.
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Neuronal mechanisms for illusory brightness perception in humans.

机译：人类幻觉亮度感知的神经元机制。

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摘要

Biological visual systems are extraordinarily capable of recovering the shape and brightness of objects from sparse and fragmentary information. Using functional magnetic imaging, we show that two associative areas of the dorsal pathway--in the caudal region of the intrapariatal sulcus and in the lateral occipital sulcus--respond specifically to the Craik-O'Brien-Cornsweet illusion generated by high-pass filtered edges. Other visual areas, including primary visual cortex, also respond strongly to the retinotopic location of the edge, but these areas respond equally well to a line of matched contrast and detectability, rather than specifically to the brightness illusion. The reconstruction of surface and/or its brightness seems to be achieved by associative areas from the information about visual features provided by the primary visual cortices, even where there is no physical difference in luminance.
机译：生物视觉系统非常有能力从稀疏和零碎的信息中恢复物体的形状和亮度。使用功能性磁成像，我们显示背侧通路的两个相关区域-鼻内沟的尾部区域和枕后外侧沟-对高通产生的Craik-O'Brien-Cornsweet幻觉有特殊反应过滤边缘。其他视觉区域（包括初级视觉皮层）也对边缘的视网膜位置强烈反应，但这些区域对匹配的对比度和可检测性线反应良好，而不是对亮度错觉有很好的反应。表面和/或其亮度的重建似乎是通过从主要视觉皮层提供的有关视觉特征的信息的相关区域来实现的，即使在亮度上没有物理差异也是如此。

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