Enhanced motion aftereffect for complex motions
Enhanced motion aftereffect for complex motions
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DOI：
10.1016/s0042-6989(98)00329-0
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发表时间：
1999-06-01
期刊：
影响因子：
1.8
通讯作者：
Makous, W
中科院分区：
文献类型：
--
作者：
Bex, PJ;Metha, AB;Makous, W
我们测量了通过四个对称定位在固定周围的空间孔径观察光栅引起的运动后效（MAE）的大小。这些光栅除了它们的方向不同之外都是相同的，它们的方向不同，以形成对应于辐射、旋转或平移的全局运动模式。通过三种方法估计MAE幅度：MAE的持续时间;使MAE无效所需的对比度和用于检测突然跳跃的阈值升高。所有这三种技术都表明，辐射和旋转的MAE大于平移。在没有适应刺激的显示区域中也观察到辐射和旋转对平移的更大适应性。我们还发现，对一个方向运动的适应对相同和相反方向运动的敏感性有相同的影响。（C）1999 Elsevier Science Ltd.保留所有权利。
We measured the magnitude of the motion aftereffect (MAE) elicited by gratings viewed through four spatial apertures symmetrically positioned around fixation. The gratings were identical except for their orientations, which were varied to form patterns of global motion corresponding to radiation, rotation or translation. MAE magnitude was estimated by three methods: the duration of the MAE; the contrast required to null the MAE and the threshold elevation for detecting an abrupt jump. All three techniques showed that MAEs for radiation and rotation were greater than those for translation. The greater adaptability of radiation and rotation over translation also was observed in areas of the display where no adapting stimulus had been presented. We also found that adaptation to motion in one direction had equal effects on sensitivity to motion in the same and opposite directions. (C)1999 Elsevier Science Ltd. All rights reserved.