Spatial dynamics of the eggs illusion: Visual field anisotropy and peripheral vision
Spatial dynamics of the eggs illusion: Visual field anisotropy and peripheral vision
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DOI：
10.1016/j.visres.2020.08.008
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发表时间：
2020-12-01
期刊：
影响因子：
1.8
通讯作者：
Mitsudo, Hiroyuki
中科院分区：
文献类型：
--
作者：
Qian, Kun;Mitsudo, Hiroyuki
鸡蛋错觉是一种视觉现象，其中位于暗网格交叉点之间的中点处的明亮圆形斑块被感知为沿着与网格线正交的方向沿着伸长。在我们报告的四个实验中，我们通过操纵视网膜偏心率和刺激在视野中的位置来探索鸡蛋错觉的空间特性。在实验1中，我们研究了是否中央和周边配置影响的错觉幅度。在实验2中，我们改变了网格图案的空间位置，发现鸡蛋错觉加强时，图案是在水平，而不是垂直或对角线的位置，相对于固定。在实验3中，我们改变了视网膜偏心率的图案沿着水平子午线，发现错觉增强视网膜周边。在实验4中，我们操纵的刺激的大小，发现周边增强的鸡蛋错觉是更明显的一个较大的模式。视野的各向异性和周边增强的鸡蛋错觉的机制有关的网格引起的错觉进行了讨论。
The eggs illusion is a visual phenomenon in which bright circular patches located at the midpoints between the intersections of a dark grid are perceived as being elongated along the direction orthogonal to the grid line. In the four experiments we report here, we explored the spatial properties of the eggs illusion by manipulating retinal eccentricity and the location of the stimulus in the visual field. In Experiment 1, we examined whether central and peripheral configurations affected the illusory magnitude. In Experiment 2, we varied the spatial location of grid patterns and found that the eggs illusion was intensified when the pattern was presented in the horizontal, not vertical or diagonal position, relative to the fixation. In Experiment 3, we varied the retinal eccentricity of the pattern along the horizontal meridian and found that the illusion was enhanced in the retinal periphery. In Experiment 4, we manipulated the size of the stimulus and found that peripheral enhancement of the eggs illusion was more apparent for a larger pattern. The visual field anisotropy and the peripheral enhancement of the eggs illusion are discussed in relation to mechanisms underlying grid-induced illusions.