SPATIAL AND TEMPORAL INTEGRATION IN OBJECT PERCEPTION

物体感知中的时空整合

• 批准号: 6227572
• 负责人: PHILIP J KELLMAN
• 金额: $ 24.32万
• 依托单位: UNIVERSITY OF CALIFORNIA LOS ANGELES
• 依托单位国家: 美国
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-03-01 至 2005-02-28
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6227572
• 关键词: adult human (21+); computational neuroscience; computer simulation; form /pattern perception; human subject; mathematical model; mental process; motion perception; neural information processing; neurophysiology; neuropsychological tests; neuropsychology; psychophysics; space perception; statistics /biometry; surface property; time perception; vision tests; visual depth perception; visual stimulus; visual tracking; young adult human (21-34)

DESCRIPTION: This project comprises a broad-based investigation into visual object and surface perception. Much of human thought and behavior is organized around the perception and representation of objects. Among the fundamental, unsolved problems of object perception is unit formation: How do we obtain descriptions of connected objects in the three-dimensional world despite interruptions - across space and time-of their contours and surfaces in their projections to the eyes? Answering these questions of unit formation and related aspects of object perception is the goal of the research. Psychophysical experiments using objective performance tasks with normal, human adult observers are used to probe the information (stimulus relationships) involved, the representations formed and the processing characteristics of human object perception. The data are used to construct geometric and information-processing models of the contour and surface relationships that lead to perception of connected objects, as well as to inform models of the neural activity underlying perception. Building on prior work, the current project extends the empirical and theoretical efforts into the less well-studied domains of three-dimensional relationships in object formation and dynamic (motion-carried) information. Particularly exciting is the suggestion in recent work that common principles may describe unit formation in two and three dimensions, and dynamic vision. These efforts will lead toward a better understanding of fundamental cognitive and behavioral processes - those that achieve representations of objects, surfaces and scenes. The results will have manifold implications for understanding normal and impaired human function, for constructing artificial (including robotic) vision systems for probing the neural mechanisms of perception.

描述：该项目包括对视觉的广泛调查 物体和表面的感知。人类的许多思想和行为都是有组织的 围绕对象的感知和表征。其中基本的， 物体感知未解决的问题是单位形成：我们如何获得 尽管存在对三维世界中相连物体的描述 中断——跨越空间和时间——它们的轮廓和表面 投射到眼睛上？回答这些关于单位组建的问题 物体感知的相关方面是研究的目标。 使用正常人类的客观表现任务进行心理物理学实验 成人观察者用于探究信息（刺激关系） 涉及、形成的表示和处理特征 人类对物体的感知。这些数据用于构建几何和 轮廓和表面关系的信息处理模型 导致对连接对象的感知，并为模型提供信息 感知背后的神经活动。 在先前工作的基础上，当前的项目扩展了实证和 对三维三维领域研究较少的领域的理论努力 物体形成和动态（运动携带）信息之间的关系。 特别令人兴奋的是最近的工作中提出的共同原则 可以描述二维和三维的单位形成以及动态视觉。 这些努力将有助于更好地理解基本认知 和行为过程 - 实现对象表示的过程， 表面和场景。结果将对以下方面产生多方面的影响 了解正常和受损的人类功能，用于构建人工 （包括机器人）视觉系统，用于探测神经机制 洞察力。