Badcock David R, Dickinson J Edwin
School of Psychology, The University of Western Australia, Crawley, WA, Australia.
Vision Res. 2009 Feb;49(3):407-15. doi: 10.1016/j.visres.2008.11.009. Epub 2008 Dec 30.
Geisler's [Geisler, W. S. (1999). Motion streaks provide a spatial code for motion direction. Nature, 400, 65-69] model of motion processing proposes that image smear arising from extended integration periods in Simple cells creates motion streaks which indicate the axis of motion. Orientation cues were provided using textured dot-pairs composed of randomly-placed luminance increments and decrements giving contours with the same average luminance as the background and incompatible with smear. These contours were equally effective in signalling both motion axis and coherence. The results support the assertion that extended contours can determine the perceived axis of motion and that the motion system can use second-order texture cues for this purpose. Inputs of this type are therefore required for both Geisler's (1999) and Barlow and Olshausen's [Barlow, H. B., & Olshausen, B. A. (2004). Convergent evidence for the visual analysis of optic flow through anisotropic attenuation of high spatial frequencies. Journal of Vision, 4, 415-426] models of this ability.
盖斯勒[盖斯勒，W.S.（1999年）。运动条纹为运动方向提供空间编码。《自然》，400，65 - 69]的运动处理模型提出，简单细胞中延长的整合期产生的图像模糊会形成运动条纹，这些条纹指示运动轴。使用由随机放置的亮度增量和减量组成的纹理点对提供方向线索，这些点对形成的轮廓与背景具有相同的平均亮度且与模糊不兼容。这些轮廓在指示运动轴和连贯性方面同样有效。结果支持了这样的观点，即延长的轮廓可以确定感知到的运动轴，并且运动系统可以为此目的使用二阶纹理线索。因此，盖斯勒（1999年）以及巴洛和奥尔绍森[巴洛，H.B.，& 奥尔绍森，B.A.（2004年）。通过高空间频率的各向异性衰减对视流进行视觉分析的收敛证据。《视觉杂志》，4，415 - 426]的这种能力模型都需要这种类型的输入。
