We present the helix rotation phenomenon, an array of moving dots that creates a conflict between two potential perceptions: a 3D Pulfrich-like horizontal rotation and a low-spatial-frequency up-down motion. We show that observers perceive up-down motion when the dots are equiluminant with the background and when the display is blurred; that the addition of sparse luminance information to equiluminant and blurred displays produces 3D perception; and that the balance between the perception of 3D rotation and up-down motion depends on the magnitude of the luminance contrast. The results are discussed in terms of the luminance capture of equiluminant information.

中文翻译：

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螺旋旋转：亮度对比度控制从二维感知到三维感知的转变。

我们介绍了螺旋旋转现象，这是一系列移动的点，在两个潜在的感知之间产生冲突：3D Pulfrich式水平旋转和低空间频率上下运动。我们显示，当点与背景相等且显示模糊时，观察者会感觉到上下运动；向等亮度和模糊的显示器添加稀疏的亮度信息会产生3D感知；并且3D旋转感知和上下运动之间的平衡取决于亮度对比度的大小。根据等亮度信息的亮度捕获来讨论结果。