Hsu Li-Chuan, Kramer Peter, Yeh Su-Ling
Medical College, China Medical University, Taichung, Taiwan.
Vision Res. 2010 Aug 6;50(17):1649-55. doi: 10.1016/j.visres.2010.05.008. Epub 2010 May 24.
After prolonged viewing, a static target among moving non-targets is perceived to repeatedly disappear and reappear. An uncrossed stereoscopic disparity of the target facilitates this Motion-Induced Blindness (MIB). Here we test whether monocular depth cues can affect MIB too, and whether they can also affect perceptual fading in static displays. Experiment 1 reveals an effect of interposition: more MIB when the target appears partially covered by, than when it appears to cover, its surroundings. Experiment 2 shows that the effect is indeed due to interposition and not to the target's contours. Experiment 3 induces depth with the watercolor illusion and replicates Experiment 1. Experiments 4 and 5 replicate Experiments 1 and 3 without the use of motion. Since almost any stimulus contains a monocular depth cue, we conclude that perceived depth affects perceptual fading in almost any stimulus, whether dynamic or static.
长时间观看后，移动的非目标物中的静止目标会被感知为反复消失和重新出现。目标物的非交叉立体视差会促进这种运动诱导失明（MIB）。在这里，我们测试单眼深度线索是否也会影响MIB，以及它们是否也会影响静态显示中的感知消退。实验1揭示了遮挡的影响：当目标物部分被其周围环境遮挡时，比当它看起来遮挡周围环境时，会出现更多的运动诱导失明现象。实验2表明，这种影响确实是由于遮挡，而不是由于目标物的轮廓。实验3利用水彩错觉诱导深度，并重复了实验1。实验4和5在不使用运动的情况下重复了实验1和3。由于几乎任何刺激都包含单眼深度线索，我们得出结论，感知到的深度会影响几乎任何刺激中的感知消退，无论该刺激是动态的还是静态的。
