Johnson Jeffrey S, Olshausen Bruno A
Center for Neuroscience, University of California Davis, Davis, CA, USA.
Vision Res. 2005 Nov;45(25-26):3262-76. doi: 10.1016/j.visres.2005.06.007. Epub 2005 Jul 25.
The visual system is adept at compensating for the missing information in scenes that results from occlusion, but how this is done is not fully understood. In particular, the role of the occluding object in visual processing and its effect on the subsequent recognition of the occluded object is unclear. We report three human behavioral experiments suggesting that the recognition of partially visible objects is facilitated when the missing object information is replaced by an occluder rather than simply removed. Furthermore, we provide EEG evidence suggesting that the processes responsible for facilitated recognition occur relatively early in the visual stream.
视觉系统擅长补偿因遮挡而导致的场景中缺失的信息，但具体是如何做到的尚未完全明了。特别是，遮挡物体在视觉处理中的作用及其对后续被遮挡物体识别的影响尚不清楚。我们报告了三项人类行为实验，结果表明，当缺失的物体信息由遮挡物替代而非简单移除时，部分可见物体的识别会得到促进。此外，我们提供的脑电图证据表明，负责促进识别的过程在视觉信息流中发生得相对较早。
