THREE-DIMENSIONAL TACTILE AND VISUAL FORM PERCEPTION

三维触觉和视觉形式感知

• 批准号: 2901448
• 负责人: KENNETH O JOHNSON
• 金额: $ 98.21万
• 依托单位: JOHNS HOPKINS UNIVERSITY
• 依托单位国家: 美国
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-09-10 至 2004-06-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/2901448
• 关键词: form /pattern perception; neural information processing; sensory signal detection; touch; visual perception

Three-dimensional (3D) form is a fundamental perceptual category that transcends individual sensory systems. A vivid percept of 3D form can be obtained from touch, from vision, or from both. The neural representations that underlie 3D for perception may be supramodal (independent or the individual sensory systems), multimodal (based on strong links between representations in the individual systems, or a mixture of the two. There are two compelling reasons to undertake the study of 3D form perception. The first is that 3D form perception is a paradigm of sensory integration in the brain. The second is that 3D form perception is a fundamental cognitive function whose neural mechanisms are almost completely unknown. Four individual projects are proposed, two involving somatosensory neurophysiology and two involving visual neurophysiology. Tactual perception of 3D form simultaneously on the conformation on the hand and on the integration of information from the multiple points of contact with the fingertips. Project 1 (Johnson) deals with how neurons respond to 3D stimuli (edges, corners, curvature) at multiple points of contact. Project 3 (Hsiao) concentrates on how responses depend on the conformation of the hand. Visual perception of 3D form is derived from 2D images; this process depends on the integration of visual information with implicit knowledge about optics and the 3D world. Project 2 (Conner) addresses how neurons in visual cortex represent the basic elements of 3D share (3D edges, corners, surface curvature, and simple volumes like blocks and cylinders). Project 4 (von der Hyedt) concentrations on the integration of binocular and monocular and cue conflict. The core project concerns shared services, administration, and project coordination.

三维（3D）形式是超越单个感觉系统的基本感知类别。可以从触摸，视觉或两者中获得对3D形式的生动感知。 The neural representations that underlie 3D for perception may be supramodal (independent or the individual sensory systems), multimodal (based on strong links between representations in the individual systems, or a mixture of the two. There are two compelling reasons to undertake the study of 3D form perception. The first is that 3D form perception is a paradigm of sensory integration in the brain. The second is that 3D form perception is a fundamental认知功能几乎是完全未知的。曲率）在多个接触点（HSIAO）上，集中于响应如何取决于手的构象。 3D形式的视觉感知来自2D图像。此过程取决于将视觉信息与有关光学和3D世界的隐式知识的集成。项目2（CONNER）解决了视觉皮层中的神经元如何表示3D共享的基本元素（3D边缘，角，表面曲率和简单卷，例如块和圆柱体）。项目4（von der Hyedt）集中双目和单眼和提示冲突的整合。核心项目涉及共享服务，管理和项目协调。