Seno Takeharu, Palmisano Stephen
Kyushu University, Shiobaru, Minami-ku, Fukuoka, Japan.
Seeing Perceiving. 2012;25(2):213-21. doi: 10.1163/187847612X626390.
Visually induced illusions of self-motion (vection) are often induced using constant velocity optic flow. However, adding simulated viewpoint jitter and oscillation to these displayscan significantly improve the vection experience (especially when this jitter/oscillation is orthogonal to the constant flow component - Nakamura, 2010; Palmisano et al., 2008). In the present experiment, we found that vection was only facilitated when luminance-, but not contrast-, defined vertical oscillatory motion was added to the constant horizontal display motion (even though observers clearly reported seeing both the oscillatory and constant display motions in both conditions). These findings demonstrate that the vection enhancement provided by simulated viewpoint oscillation is not simply based on the perceived display motion.
视觉诱发的自我运动错觉（动景运动）通常是利用匀速视觉流来诱发的。然而，在这些显示中添加模拟的视点抖动和振荡可以显著改善动景运动体验（特别是当这种抖动/振荡与恒定流分量正交时——中村，2010年；帕尔米萨诺等人，2008年）。在本实验中，我们发现，只有当在恒定的水平显示运动中添加由亮度而非对比度定义的垂直振荡运动时，动景运动才会得到促进（尽管观察者在两种情况下都明确报告看到了振荡和恒定的显示运动）。这些发现表明，模拟视点振荡所提供的动景运动增强不仅仅基于所感知到的显示运动。
