Effect of Global Image Properties on Visual Cognition

描述（由申请人提供）：我们睁开眼睛，几乎立即体验到一个丰富而细致的视觉世界。这种体验似乎是由两种不同类型的视觉过程组成的，它们的运作规模不同。全局进程快速计算概要信息，例如场景中对象的平均大小，但不表示任何特定对象的细节。更多的本地进程确实表示单个对象的细节，但似乎一次只操作一个或少量对象。传统上，这些过程都是独立研究的。本项目的目标是确定这两个不同级别的处理如何相互作用。具体来说，我们计划确定场景的全局属性如何影响我们在该场景中表示对象的特定局部细节的能力。该项目的结果将对理解如何表示全局图像属性以及这些属性如何影响对物体局部细节的感知和记忆具有重要意义。这可以为了解不同人群（例如阿尔茨海默病和自闭症）的视力问题的本质提供有价值的见解，这可能有助于诊断目的或用于治疗的视觉材料的设计。

DESCRIPTION (provided by applicant): We open our eyes and almost instantly experience a rich and detailed visual world. This experience seems to be composed by two distinct types of visual processes that differ in their scale of operation. Global processes rapidly compute summary information, such as the average size of objects in a scene, but do not represent the details of any particular object. More local processes do represent the details of individual objects, but appear to operate on just one or a small number of objects at a time. Traditionally these processes have been investigated independently. The goal of the present project is to determine how these two different levels of processing interact. Specifically, we plan to determine how the global properties of a scene influence our ability to represent the specific local details of objects within that scene. The results of this project will have important implications for understanding how global image properties are represented and how those properties influence perception and memory for the local details of objects. This could provide valuable insight into the nature of vision problems in different populations (e.g., Alzheimer s disease and autism), which could be useful for diagnostic purposes or for the design of visual materials used in therapy.