Fesi Jeremy D, Mendola Janine D
Department of Ophthalmology, McGill University, Montreal, Quebec, Canada.
Vis Neurosci. 2013 Nov;30(5-6):299-313. doi: 10.1017/S0952523813000266. Epub 2013 Aug 23.
The dissociation of a figure from its background is an essential feat of visual perception, as it allows us to detect, recognize, and interact with shapes and objects in our environment. In order to understand how the human brain gives rise to the perception of figures, we here review experiments that explore the links between activity in visual cortex and performance of perceptual tasks related to figure perception. We organize our review according to a proposed model that attempts to contextualize figure processing within the more general framework of object processing in the brain. Overall, the current literature provides us with individual linking hypotheses as to cortical regions that are necessary for particular tasks related to figure perception. Attempts to reach a more complete understanding of how the brain instantiates figure and object perception, however, will have to consider the temporal interaction between the many regions involved, the details of which may vary widely across different tasks.
将图形与其背景分离是视觉感知的一项基本功能,因为它使我们能够在周围环境中检测、识别形状和物体并与之互动。为了理解人类大脑如何产生图形感知,我们在此回顾一些实验,这些实验探索了视觉皮层活动与图形感知相关的感知任务表现之间的联系。我们根据一个提出的模型来组织我们的综述,该模型试图将图形处理置于大脑中更一般的物体处理框架内。总体而言,当前的文献为我们提供了关于与图形感知相关的特定任务所必需的皮层区域的个别联系假设。然而,要更全面地理解大脑如何实现图形和物体感知,就必须考虑众多相关区域之间的时间交互作用,而不同任务中这些交互作用的细节可能差异很大。