Suzuki Megumi, Wolfe Jeremy M, Horowitz Todd S, Noguchi Yasuki
Department of Psychology, Graduate School of Humanities, Kobe University, Japan.
Vision Res. 2013 Apr 19;82:58-65. doi: 10.1016/j.visres.2013.02.011. Epub 2013 Feb 26.
A previous study reported the misbinding illusion in which visual features belonging to overlapping sets of items were erroneously integrated (Wu, Kanai, & Shimojo, 2004, Nature, 429, 262). In this illusion, central and peripheral portions of a transparent motion field combined color and motion in opposite fashions. When observers saw such stimuli, their perceptual color-motion bindings in the periphery were re-arranged in such a way as to accord with the bindings in the central region, resulting in erroneous color-motion pairings (misbinding) in peripheral vision. Here we show that this misbinding illusion is also seen in the binding of color and orientation. When the central field of a stimulus array was composed of objects that had coherent (regular) color-orientation pairings, subjective color-orientation bindings in the peripheral stimuli were automatically altered to match the coherent pairings of the central stimuli. Interestingly, the illusion was induced only when all items in the central field combined color and orientation in an orthogonal fashion (e.g. all red bars were horizontal and all green bars were vertical). If this orthogonality was disrupted (e.g. all red and green bars were horizontal), the central field lost its power to induce the misbinding illusion in the peripheral stimuli. The original misbinding illusion study proposed that the illusion stemmed from a perceptual extrapolation that resolved peripheral ambiguity with clear central vision. However, our present results indicate that visual analyses of the correlational structure between two features (color and orientation) are critical for the illusion to occur, suggesting a rapid integration of multiple featural cues in the human visual system.
先前的一项研究报告了错配错觉，即属于重叠项目集的视觉特征被错误整合（Wu、Kanai和Shimojo，2004年，《自然》，429卷，262页）。在这种错觉中，透明运动场的中央和周边部分以相反的方式组合颜色和运动。当观察者看到此类刺激时，他们周边视觉中的感知颜色-运动绑定会以与中央区域的绑定一致的方式重新排列，从而导致周边视觉中出现错误的颜色-运动配对（错配）。在此我们表明，这种错配错觉在颜色和方向的绑定中也会出现。当刺激阵列的中央区域由具有连贯（规则）颜色-方向配对的物体组成时，周边刺激中的主观颜色-方向绑定会自动改变，以匹配中央刺激的连贯配对。有趣的是，只有当中央区域中的所有项目以正交方式组合颜色和方向时（例如，所有红色条都是水平的，所有绿色条都是垂直的），错觉才会被诱发。如果这种正交性被破坏（例如，所有红色和绿色条都是水平的），中央区域就会失去诱发周边刺激中错配错觉的能力。最初的错配错觉研究提出，这种错觉源于一种感知外推，即利用清晰的中央视觉来解决周边的模糊性。然而，我们目前的结果表明，对两个特征（颜色和方向）之间相关结构的视觉分析对于错觉的发生至关重要，这表明人类视觉系统中存在多种特征线索的快速整合。
