Williams D, Phillips G
J Opt Soc Am A. 1987 May;4(5):878-85. doi: 10.1364/josaa.4.000878.
A percept of global coherent motion can result from the combination of many different localized motion vectors. We report here evidence of hysteresis in the perception of this global motion, obtained with random-dot cinematograms. The hysteresis characteristics are relatively robust with respect to changes in dot density, display area, and location. Changing the directional content of the stimulus, however, did alter the hysteresis profile in a manner consistent with a model incorporating cooperative interactions among direction-selective motion mechanisms. Our results lend further support to a cooperative interpretation of motion results lend further support to a cooperative interpretation of motion perception in random-dot cinematograms.
对全局连贯运动的感知可能源于许多不同局部运动矢量的组合。我们在此报告通过随机点电影图获得的关于这种全局运动感知中滞后现象的证据。滞后特性在点密度、显示区域和位置变化方面相对稳健。然而，改变刺激的方向内容确实以与包含方向选择性运动机制之间协同相互作用的模型一致的方式改变了滞后曲线。我们的结果进一步支持了对随机点电影图中运动感知的协同解释。
