The Aubert-Fleischl phenomenon: A temporal frequency effect on perceived velocity in afferent motion perception
The Aubert-Fleischl phenomenon: A temporal frequency effect on perceived velocity in afferent motion perception
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奥伯特-弗莱施尔现象：传入运动感知中感知速度的时间频率效应
DOI：
10.1007/bf00234920
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发表时间：
1975
影响因子：
2
通讯作者：
T. Brandt
中科院分区：
文献类型：
--
作者：
J. Dichgans;E. Wist;H. Diener;T. Brandt
运动视觉刺激的视速度是不同的，这取决于受试者是否追求刺激（传出控制的运动知觉），或者眼睛是否静止，图像在视网膜上移动（传入运动知觉）。周期模式或移动的单个对象的传入运动感知导致对速度（幅度估计）的高估，而不是平滑追求。这种所谓的Aubert-Fleischl现象被证明依赖于视网膜上的局部时间频率刺激，这种刺激是由移动周期图案的对比边界的重复通过引起的。事实证明，对于给定的刺激速度，高估的量是图案的空间频率（或单个运动物体的角方向）的函数，如果单个边缘移动，则不会观察到奥伯特-弗莱施尔现象。背景特征似乎不影响平滑追踪时的视速度。
SummaryApparent velocities of moving visual stimuli are known to be different depending on whether the subject pursues the stimulus (efferently controlled motion perception) or whether the eye is stationary and the image moves across the retina (afferent motion perception). Afferent motion perception of a periodic pattern or a moving single object causes overestimation of velocity (magnitude estimations) as compared to smooth pursuit. This socalled Aubert-Fleischl phenomenon is shown to depend on local temporal frequency stimulation on the retina caused by the repetitive passage of contrast borders of the moving periodic pattern. This is evidenced by the fact that for a given stimulus speed the amount of overestimation is a function of the spatial frequency of the pattern (or the angular subtend of a single moving object) and that the Aubert-Fleischl phenomenon is not observed if a single edge moves. Background characteristics seem not to influence the apparent velocity during smooth pursuit.