Surface segregation driven by orientation-defined junctions
Surface segregation driven by orientation-defined junctions
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DOI：
10.1007/s00221-004-2065-0
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发表时间：
2004-10-01
影响因子：
2
通讯作者：
Miura, K
中科院分区：
文献类型：
--
作者：
Kawabe, T;Miura, K
这项研究旨在确定人类视觉系统是否可以通过整合纹理边界在二阶X-路口的重叠表面隔离。所使用的刺激是由Gabor微图案组成的交叉垂直和水平条纹。我们操纵了每个条纹中心区域的方向。观察者判断交叉条纹是“两条重叠的条纹”还是“五个独立的区域”。“结果表明，当中心和两侧区域之间的方向差异小于30度时，感知重叠条纹的概率超过机会水平（0.5）。我们认为，整合的纹理边界沿着每个条纹发生的过滤器-整流器-过滤器的机制，从而在重叠的表面的印象。当这失败时，结果是五个单独区域的感知。
This study was designed to ascertain whether the human visual system can segregate overlapped surfaces by integrating texture borders at second-order X-junctions. The stimuli used were crossed vertical and horizontal stripes consisting of Gabor micro-patterns. We manipulated the orientation of the center region of each stripe. Observers judged whether the crossed stripes appeared as "two overlapped stripes" or "five individual regions." The results showed that the probability of perceiving overlapped stripes exceeded the chance level (0.5) when the orientation differences between the center and flanking regions were less than 30degrees. We suggest that the integration of texture borders along each stripe occurs by the filter-rectify-filter mechanism, resulting in the impression of overlapped surfaces. When this fails, the outcome is the perception of five individual regions.