The dynamical foundations of motion pattern formation:: Stability, selective adaptation, and perceptual continuity
The dynamical foundations of motion pattern formation:: Stability, selective adaptation, and perceptual continuity
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DOI：
10.3758/bf03194574
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发表时间：
2003-04-01
期刊：
影响因子：
--
通讯作者：
Giese, M
中科院分区：
文献类型：
--
作者：
Hock, HS;Schöner, G;Giese, M
一个动力学模型被用来表明，全球运动模式的形成几个不同的明显的运动刺激可以体现在稳定的分布激活人口的同时激活，方向选择性运动检测器。该模型，这是基于运动检测器是互动的，嘈杂的，和自我稳定，占这样的现象，如双稳态，自发切换，滞后，和选择性适应。模拟结果表明，动态解决方案的运动对应问题的一个单稳态刺激（形成两个定性不同的模式）的解决方案，以及适用于单稳态刺激（只有一个模式形成），并强调顺序刺激的检测器之间的相互作用的作用，在建立状态依赖，从而，感知的时间持久性。
A dynamical model is used to show that global motion pattern formation for several different apparent motion stimuli can be embodied in the stable distribution of activation over a population of concurrently activated, directionally selective motion detectors. The model, which is based on motion detectors being interactive, noisy, and self-stabilizing, accounts for such phenomena as bistability, spontaneous switching, hysteresis, and selective adaptation. Simulations show that dynamical solutions to the motion correspondence problem for a bistable stimulus (two qualitatively different patterns are formed) apply as well to the solution for a monostable stimulus (only one pattern is formed) and highlight the role of interactions among sequentially stimulated detectors in establishing the state dependence and, thereby, the temporal persistence of percepts.