An exception to the rule that only one color is seen at every retinotopic location happens when a bounded colored transparency or spotlight is seen on a differently colored surface. Despite the spectrum of the light from each retinotopic location being an inextricable multiplication of illumination, transmission, and reflectance spectra, we seem to be able to scission the information into background and transparency/spotlight colors. Visual cues to separating overlay and overlaid layers have been enumerated, but neural mechanisms that extract veridical colors for overlays have not been identified. Here, we demonstrate that spatial induction contributes to color scission by shifting the color of the overlay toward the actual color of the filter. By alternating filter and illumination spectra, we present naturalistic simulations where isomeric disks appear to be covered by filters/spotlights of near veridical colors, depending solely on the surrounding illumination. This previously unrecognized role for spatial induction suggests that color scission employs some general purpose neural mechanisms.

当在不同颜色的表面上看到有界的彩色透明体或聚光灯时，在每个视网膜位置只能看到一种颜色的规则有一个例外。尽管来自每个视网膜位置的光的光谱是照明、透射和反射光谱不可分割的倍增，但我们似乎能够将信息分割成背景和透明度/聚光灯颜色。已经列举了分离覆盖层和覆盖层的视觉线索，但尚未确定为覆盖层提取真实颜色的神经机制。在这里，我们证明空间感应通过将覆盖层的颜色转向滤镜的实际颜色来促进颜色分离。通过交替滤光片和照明光谱，我们提出了自然模拟，其中异构盘似乎被接近真实颜色的滤光片/聚光灯覆盖，仅取决于周围的照明。这种以前未被认识到的空间感应作用表明颜色分裂采用了一些通用的神经机制。