An Illusory Contour Can Facilitate Visually Induced Self-Motion Perception
An Illusory Contour Can Facilitate Visually Induced Self-Motion Perception
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虚幻的轮廓可以促进视觉诱导的自我运动感知
DOI：
10.1163/22134808-20181312
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发表时间：
2018
影响因子：
1.6
通讯作者：
Takahashi Shin’ya
中科院分区：
文献类型：
--
作者：
Nakamura Shinji;Takahashi Shin’ya
视觉刺激的匀速运动使观察者产生错觉，认为自己的身体在相反的方向运动（矢量）。本研究利用邻线刺激研究了垂直虚幻轮廓是否会影响水平平动矢量。刺激由若干以恒定速度水平移动的水平线组成。一组垂直对齐的部分创建了一个“条纹柱”，而相邻柱中的线段垂直移动，使它们之间产生轻微的间隙。在虚幻轮廓条件下，将柱内各段的端点水平对齐，生成垂直虚幻轮廓。在没有错觉轮廓的条件下，这些端点没有在列内对齐，因此错觉轮廓不会被感知。在本研究中，11名参与者进行了该实验，结果表明，在虚幻轮廓条件下诱导的向量比没有虚幻轮廓条件下诱导的向量强。本实验结果提供了新的证据，表明非亮度定义的视觉特征对视觉自运动知觉有促进作用。
Uniform motion of a visual stimulus induces an illusory perception of the observer’s self-body moving in the opposite direction (vection). The present study investigated whether vertical illusory contours can affect horizontal translational vection using abutting-line stimulus. The stimulus consisted of a number of horizontal line segments that moved horizontally at a constant speed. A group of vertically aligned segments created a ‘striped column’, while line segments in adjoining columns were shifted vertically to make a slight gap between them. In the illusory contour condition, the end points of the segments within the column were horizontally aligned to generate vertical illusory contours. In the condition with no illusory contour, these end points were not aligned within the column so that the illusory contour was not perceived. In the current study, 11 participants performed this experiment, and it was shown that stronger vection was induced in the illusory contour condition than in the condition with no illusory contour. The results of the current experiment provide novel evidence suggesting that non-luminance-defined visual features have a facilitative effect on visual self-motion perception.