MOTION CAPTURE CHANGES TO INDUCED MOTION AT HIGHER LUMINANCE CONTRASTS, SMALLER ECCENTRICITIES, AND LARGER INDUCER SIZES
MOTION CAPTURE CHANGES TO INDUCED MOTION AT HIGHER LUMINANCE CONTRASTS, SMALLER ECCENTRICITIES, AND LARGER INDUCER SIZES
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DOI：
10.1016/0042-6989(93)90008-k
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发表时间：
1993-10-01
期刊：
影响因子：
1.8
通讯作者：
SHIMOJO, S
中科院分区：
文献类型：
--
作者：
MURAKAMI, I;SHIMOJO, S
在“运动捕捉”现象的刺激配置中，我们改变了中心盘（目标）的亮度对比度、偏心率和刺激大小。受试者必须判断感知到的目标运动方向。我们发现，在较小的偏心率和较大的刺激尺寸下，运动捕捉转变为诱导运动（错觉运动方向相反）。在中等偏心率下，随着目标亮度对比度的增加，运动捕捉转变为诱导运动。通过使用幅度估计，我们还发现即使亮度定义的目标也被捕获（“同色运动捕获”），并且移动目标被静止诱导器捕获（“位置捕获”）。运动和位置捕获效应通常在目标亮度对比度较低、偏心率较大和尺寸较小时观察到。根据这些结果，我们提出了一种运动处理中的中心-环绕对抗性运动对比度检测器模型。
In the stimulus configuration for ''motion capture'' phenomenon, we varied luminance contrast of the center disk (target), eccentricity and stimulus size. The subjects had to judge the direction of perceived target motion. We found that motion capture changed to induced motion (the direction of illusory motion was reversed) at smaller eccentricities and larger stimulus sizes. At intermediate eccentricities, motion capture changed to induced motion with increasing luminance contrast of the target. By using magnitude estimation, we also found that even a luminance-defined target was captured (''homochromatic motion capture'') and that a moving target was captured by a stationary inducer (''position capture''). Both motion and position capture effects were commonly observed at lower luminance contrasts of the target, larger eccentricities and smaller sizes. From these results, we propose a model of center-surround antagonistic motion contrast detectors in motion processing.