Ivanchenko Volodymyr, Jacobs Robert A
Department of Brain and Cognitive Sciences, Center for Visual Science, University of Rochester, Rochester, NY 14627, USA.
Vision Res. 2007 Jan;47(2):145-56. doi: 10.1016/j.visres.2006.09.028. Epub 2006 Dec 5.
We examined learning at multiple levels of the visual system. Subjects were trained and tested on a same/different slant judgment task or a same/different curvature judgment task using simulated planar surfaces or curved surfaces defined by either stereo or monocular (texture and motion) cues. Taken as a whole, the results of four experiments are consistent with the hypothesis that learning takes place at both cue-dependent and cue-invariant levels, and that learning at these levels can have different generalization properties. If so, then cue-invariant mechanisms may mediate the transfer of learning from familiar cue conditions to novel cue conditions, thereby allowing perceptual learning to be robust and efficient. We claim that learning takes place at multiple levels of the visual system, and that a comprehensive understanding of visual perception requires a good understanding of learning at each of these levels.
我们在视觉系统的多个层面研究了学习情况。使用由立体视觉或单眼（纹理和运动）线索定义的模拟平面或曲面，让受试者在相同/不同倾斜度判断任务或相同/不同曲率判断任务上接受训练和测试。总体而言，四项实验的结果与以下假设一致：学习发生在依赖线索和不依赖线索的层面，并且这些层面的学习可能具有不同的泛化特性。如果是这样，那么不依赖线索的机制可能介导学习从熟悉的线索条件向新的线索条件的迁移，从而使知觉学习变得稳健且高效。我们认为学习发生在视觉系统的多个层面，并且对视觉感知的全面理解需要对这些层面中的每一个层面的学习有良好的理解。
