场景主旨加工及其机制

Scene gist processing and its mechanisms

场景主旨是指观察者在一次注视场景的过程中所获得知觉和语义信息。近年来,场景主旨加工研究已经成为视知觉领域的重要内容,对该问题的研究将有助于揭示视觉信息加工的机制,对智能机器视觉的研制也有一定的借鉴意义。对场景主旨加工的影响因素、争议性的问题以及场景主旨的神经基础进行评论;未来可以在场景主旨加工的基本单元、相关的理论解释、层级加工的调节因素、注意的调节作用、时间动力特性和脑功能网络的构建等方面做进一步的探讨。

With a mere glimpse of a scene, observers can grasp a variety of perceptual and semantic information. This is referred to as scene gist. In recent years, scene gist processing has become an important topic in visual perception domain. Research on this theme can reveal the processing mechanisms for visual information and provide important implications for developing intelligent machine vision. The influencing factors, the controversial issues, and the neural basis of scene gist processing are reviewed. Some important issues, including the primary element of scene gist processing, the relevant theoretical explanations, the modulating factors of the hierarchical processing, the modulatory effect of attention, the timing dynamic characteristics and the construction of the brain function network, should be further explored.