The distribution of oriented contours in the real word
The distribution of oriented contours in the real word
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DOI：
10.1073/pnas.95.7.4002
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发表时间：
1998-03-31
影响因子：
11.1
通讯作者：
Purves, D
中科院分区：
文献类型：
--
作者：
Coppola, DM;Purves, HR;Purves, D
在人类和实验动物中，感知垂直或水平方向的轮廓的能力优于感知斜角的能力，然而，对于这种现象的发育起源或功能基础，还没有达成共识。在这里，我们报告了一个大型数字化场景库的分析，使用方向敏感滤光片处理上升图像，我们的结果显示在室内、室外，甚至完全自然的环境中，垂直和水平方向普遍存在。因为我们知道视觉体验会影响视觉皮层回路的发展，我们认为这种现实世界的各向异性与人类和其他动物处理主轴上轮廓的能力增强有关，可能是通过刺激更多致力于处理垂直和水平轮廓的视觉回路的发展。
In both humans and experimental animals, the ability to perceive contours that are vertically or horizontally oriented Is superior to the perception of oblique angles, There is, however, no consensus about the developmental origins or functional basis of this phenomenon. Here, we report the analysis of a large library of digitized scenes rising image processing with orientation sensitivity filters, Our results show a prevalence of vertical and horizontal orientations in indoor, outdoor, and even entirely natural settings. Because visual experience is known to influence the development of visual cortical circuitry, we suggest that this real world anisotropy is related to the enhanced ability of humans and other animals to process contours in the cardinal axes, perhaps by stimulating the development of a greater amount of visual circuitry devoted to processing vertical and horizontal contours.