Errors in direction-of-motion discrimination with complex stimuli
Errors in direction-of-motion discrimination with complex stimuli
复制标题
复杂刺激下的运动方向辨别错误
DOI：
10.1016/0042-6989(87)90143-x
复制
发表时间：
1987
期刊：
影响因子：
1.8
通讯作者：
Samoff Re
中科院分区：
文献类型：
--
作者：
A. Derrington;G. Bruce Henningt;England Present;Rca David;Samoff Re
包括静态1-周期/度（c/deg）光栅和移动3-c/deg光栅的复杂图案中的表观运动的方向随着刺激持续时间而改变。在持续时间长于约150毫秒时，运动几乎是真实地看到的; 3-c/deg光栅的运动被正确地看到，仅仅在1-c/deg光栅中引起相反方向上的弱视运动。然而，在较短的持续时间内，所看到的唯一运动方向与实际发生的方向相反。反向的视运动是令人信服的和一致的;它是由天真的和有经验的观察者报告的，虽然它只发生在一定范围的空间频率，对比度和持续时间，范围是相当大的。逆转似乎是几乎独立的时间频率和空间相位的刺激，它发生离散和连续运动。短时间刺激的明显运动似乎揭示了局部视觉运动检测的特性，这些特性以前是未知的，并且在当前运动感知模型的框架内难以解释。
The direction of apparent motion in a complex pattern comprising a static 1-cycle/degree (c/deg) grating and a moving 3-c/deg grating changes with stimulus duration. At durations longer than about 150 msec, motion is seen almost veridically; the motion of the 3-c/deg grating, which is seen correctly, merely induces in the 1-c/deg grating a weak apparent motion in the opposite direction. At shorter durations, however, the only motion seen is in the opposite direction from that which, in fact, occurs. The reversed apparent motion is both compelling and consistent; it is reported both by naive and by experienced observers, and, although it only occurs for certain ranges of spatial frequency, contrast and duration, the ranges are substantial. The reversal appears to be almost independent of the temporal frequency and the spatial phase of the stimulus; it occurs both for discrete and for continuous motion. It seems likely that the apparent motion with short duration stimuli reveals properties of local visual movement detection previously unknown and difficult to account for within the framework of current models of motion perception.
DOI：
10.1364/josaa.2.000300
发表时间：
1985-01-01
影响因子：
1.9
作者：
VANSANTEN, JPH;SPERLING, G
通讯作者：
SPERLING, G