Mid-level visual processing in peripheral vision

从“你的眼角”里你能看到什么？人们普遍认为周边视力“差”，而中心视力“好”。毕竟，我们几乎一直在移动我们的眼睛，将世界的不同部分带入我们更聚焦的中心视野。但事情可能没有那么简单。例如，拿着纸巾管走来走去，将你的视线限制在“好”的中心部分，这将是具有挑战性和令人沮丧的。相反，这个项目考虑了中央视觉和外围视觉在视觉感知中扮演不同功能角色的可能性。这项研究使用了根据人的观看位置而变化的显示器，以分离出人们可以看到的视野的哪一部分，然后测量整个视野中广泛的基本视觉过程。它正在测试这样的一般假设，即中央视觉是感知地组织的，导致以3D对象和表面来表示世界，而外围视觉在感知上是无组织的，导致2D表示更像是纹理而不是对象。这项工作可以为患有特定视野丧失的个体经历的不同特定功能缺陷提供解释，例如黄斑变性导致的中央丧失或青光眼导致的外周丧失。该项目由感知、行动和认知(PAC)、既定的激励竞争性研究计划(EPSCoR)和智能互联健康(SCH)共同资助。该奖项反映了NSF的法定使命，并通过使用基金会的智力优势和更广泛的影响审查标准进行评估，被认为值得支持。

What can you see out of “the corner of your eye”? It is common for people to think that peripheral vision is “bad” while central vision is “good”. After all, we are almost constantly moving our eyes to bring different parts of the world into our more-focused central field of view. But it may not be as simple as that. Walking around with paper towel tubes limiting your view to only the “good” central part, for example, would be challenging and frustrating. Instead, this project considers the possibility that central and peripheral vision serve different functional roles in visual perception more generally.This work uses displays that change depending on where a person is looking to isolate what part of the visual field people can see, and then to measure a wide range of basic visual processes across the visual field. It is testing the general hypothesis that central vision is perceptually organized, resulting in representations of the world in terms of 3D objects and surfaces, whereas peripheral vision is perceptually unorganized, resulting in 2D representations that are more like textures than objects. This work can provide explanations for different specific functional deficits that are experienced by individuals with specific visual field loss, such as central loss from macular degeneration or peripheral loss from glaucoma. This project is jointly funded by Perception, Action and Cognition (PAC), the Established Program to Stimulate Competitive Research (EPSCoR), and Smart and Connected Health (SCH).This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.