Pantle A, Hicks K
Department of Psychology, Miami University, Oxford, Ohio 45056.
Spat Vis. 1985;1(1):69-82. doi: 10.1163/156856885x00099.
Directional responses to visual stimuli were analysed with the aid of a minimal computational model. The model is based upon arrays of motion sensors whose receptive fields are modified versions of those (difference-of-Gaussians) used to describe mechanisms in popular spatial vision models. In the model antagonistic influences on each motion sensor were assumed to: (1) arise from spatially non-aligned areas of the retina; and (2) to follow different time courses. Implications of the model were explored with simulations, and parallel psychophysical data were collected. Visual behaviours chosen for relatively detailed analysis were judgments of the temporal order of onset of two spatially displaced stimuli and motion aftereffects generated with discontinuously moving, sine-wave gratings.
借助一个最小计算模型分析了对视觉刺激的定向反应。该模型基于运动传感器阵列，其感受野是用于描述流行空间视觉模型中机制的高斯差分感受野的修改版本。在该模型中，假定对每个运动传感器的拮抗影响：(1) 来自视网膜上空间未对齐的区域；(2) 遵循不同的时间进程。通过模拟探索了该模型的影响，并收集了平行的心理物理学数据。选择用于相对详细分析的视觉行为是对两个空间移位刺激开始的时间顺序的判断以及由不连续移动的正弦波光栅产生的运动后效。
