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The Ring Rotation Illusion: Properties and Links of a Novel Illusion of Motion

机译：环旋转幻觉：新颖运动幻觉的性质和链接

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We report a novel visual illusion we call the Ring Rotation Illusion (RRI). When a ring of stationary points replaces a circular outline, the ring of points appears to rotate to a halt, although no actual motion has been displayed. Three experiments evaluate the clarity of the illusory rotation. Clarity decreased as the diameter of the circle and ring increased and increased as the number of points forming the ring increased. The optimal interstimulus interval (ISI) between the circle and ring was 90?ms when stimulus presentations lasted 100?ms but 0?ms with 500?ms presentations. We compare the RRI to the Motion Bridging Effect (MBE), a similar illusion in which a stationary ring of points replaces an initial ring of points that spins so rapidly it looks like a stationary outline. A rotation of the stationary ring is seen that usually matches the direction of the initial ring’s invisible spin. Participants reported a slightly more frequent and clearer motion percept with the MBE than RRI. ISI manipulations had similar effects on the two illusions, but the effects of number of points and ring diameter were largely restricted to the RRI. We suggest that both the RRI and MBE motion percepts are produced by a visual heuristic that holds that the transition from an outline circle to a ring of points is plausibly explained by a rapid spin decelerating to a halt, but in the case of the MBE, an additional direction-sensitive mechanism contributes to this percept.
机译：我们报告了一种新的视觉错觉，我们称之为环旋转幻觉（RRI）。当静止点的环取代圆形轮廓时，点环似乎旋转到停止，尽管没有显示实际运动。三个实验评估了虚幻旋转的清晰度。随着圆圈的直径增加并且随着形成环的点数增加而增加，清晰度降低。当刺激演示持续100℃时，圆圈和环之间的最佳间隙间隔（ISI）为90？MS？MS但0？MS有500？MS呈现。我们将RRI与运动桥接效果（MBE）进行比较，一种类似的错觉，其中固定点的点替换旋转的初始点旋转，这看起来像静止轮廓。看到固定环的旋转通常与初始环形无形旋转的方向相匹配。与会者的参与者报告了与MBE的稍服和更清晰的运动感。 ISI操纵对两种幻想有类似的影响，但点和环直径的效果在很大程度上限于RRI。我们建议，RRI和MBE运动感应由视觉启发式产生，该视觉启发式旨在认为从轮廓圈到点环的过渡是由快速旋转减速到停止的快速旋转，而是在MBE的情况下解释，但是在MBE的情况下，额外的方向敏感机制有助于这种感染机制。

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