Backscroll illusion: Apparent motion in the background of locomotive objects
Backscroll illusion: Apparent motion in the background of locomotive objects
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DOI：
10.1016/j.visres.2005.09.027
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发表时间：
2006-01-01
期刊：
影响因子：
1.8
通讯作者：
Sato, T
中科院分区：
文献类型：
--
作者：
Fujimoto, K;Sato, T
背景滚动错觉是指在电影图像中呈现运动物体（如人、动物和车辆）的背景中可以感知到的明显运动。这种错觉来自视觉系统记录视网膜运动信号与高级物体运动信号的关系。我们从心理物理实验中证实了这一观点，这些实验主要展示了一个真实的人在跑步机上行走或在反相光栅前跑步。视光栅运动始终是在与运动相反的方向上引起的。感应被调整为步态速度。时间进程表明，这种错觉似乎与步态识别同步产生，并且在肢体摆动数次逆转的情况下持续存在，从而否认了局部运动的说法。从一个静态的人身上观察到一个微弱但重要的错觉，暗示着步态。因此，我们得出结论，错觉是由生物运动的高级识别决定的。另一项实验发现，有轮子的车辆也有类似的效果，但轮子本身没有感应。这一结果使我们假设，向后滚动错觉可以推广到具有暗示其移动方向的形状的物体。(c) 2005 Elsevier Ltd版权所有。
Backscroll illusion is an apparent motion perceived in backgrounds of movie images that present locomotive objects such as people, animals, and vehicles. This illusion is from the visual system registering retinal motion signals in relation to high-level object motion signals. We confirmed this notion from psychophysical experiments that mainly presented a realistic human figure on a treadmill walking or running in front of a counterphase grating. The apparent grating motion was consistently induced in the direction opposite to the locomotion. The induction was tuned to a gait velocity. The time course showed that the illusion arose as if it was synchronized with gait recognition, and that it was sustained against several reversals of limb swings so that local motion accounts were denied. A weak but significant illusion was observed from a static figure that implied a gait. Thus, we concluded that the illusion was determined by the high-level recognition of biological motion. An additional experiment found a similar effect from a vehicle with rotating wheels but no induction from a rotating wheel per se. This result led us to hypothesize that the backscroll illusion is generalized to objects that have shapes implying their moving directions. (c) 2005 Elsevier Ltd. All rights reserved.