THREE-DIMENSIONAL TACTILE AND VISUAL FORM PERCEPTION

三维触觉和视觉形式感知

基本信息

  • 批准号:
    2901448
  • 负责人:
  • 金额:
    $ 98.21万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
  • 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

项目摘要

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)形式是超越个人感觉系统的基本感知范畴。通过触摸、视觉或两者都可以获得3D形式的生动感知。作为3D感知基础的神经表征可能是超模态的(独立或单个感觉系统),多模态的(基于单个系统中表征之间的强联系),或者两者的混合。进行3D形态感知研究有两个令人信服的理由。首先,3D形式感知是大脑中感觉整合的一个范例。第二,三维形态感知是一种基本的认知功能,其神经机制几乎完全未知。提出了四个单独的项目,两个涉及体感神经生理学,两个涉及视觉神经生理学。触觉感知的三维形态同时依赖于手上的构象和指尖上多个接触点的信息整合。项目1 (Johnson)研究神经元如何在多个接触点对3D刺激(边、角、曲率)做出反应。项目3 (Hsiao)集中研究手的构象对反应的影响。三维形式的视觉感知来源于二维图像;这个过程依赖于视觉信息与关于光学和三维世界的隐性知识的整合。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、角、表面曲率和简单的体块和圆柱体)。项目4 (von der hyyedt)集中于双目和单眼以及线索冲突的整合。核心项目涉及共享服务、管理和项目协调。

项目成果

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专利数量(0)

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KENNETH O JOHNSON其他文献

KENNETH O JOHNSON的其他文献

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{{ truncateString('KENNETH O JOHNSON', 18)}}的其他基金

Core--Scientific integration, shared services
核心--科学集成、共享服务
  • 批准号:
    6595038
  • 财政年份:
    2002
  • 资助金额:
    $ 98.21万
  • 项目类别:
Representation of three dimensional shape features in somatosensory cortex
体感皮层三维形状特征的表示
  • 批准号:
    6595034
  • 财政年份:
    2002
  • 资助金额:
    $ 98.21万
  • 项目类别:
Representation of three dimensional shape features in somatosensory cortex
体感皮层三维形状特征的表示
  • 批准号:
    6480803
  • 财政年份:
    2001
  • 资助金额:
    $ 98.21万
  • 项目类别:
Core--Scientific integration, shared services
核心--科学集成、共享服务
  • 批准号:
    6480807
  • 财政年份:
    2001
  • 资助金额:
    $ 98.21万
  • 项目类别:
Representation of three dimensional shape features in somatosensory cortex
体感皮层三维形状特征的表示
  • 批准号:
    6326015
  • 财政年份:
    2000
  • 资助金额:
    $ 98.21万
  • 项目类别:
Core--Scientific integration, shared services
核心--科学集成、共享服务
  • 批准号:
    6326019
  • 财政年份:
    2000
  • 资助金额:
    $ 98.21万
  • 项目类别:
Representation of three dimensional shape features in somatosensory cortex
体感皮层三维形状特征的表示
  • 批准号:
    6226521
  • 财政年份:
    1999
  • 资助金额:
    $ 98.21万
  • 项目类别:
THREE-DIMENSIONAL TACTILE AND VISUAL FORM PERCEPTION
三维触觉和视觉形式感知
  • 批准号:
    6639544
  • 财政年份:
    1999
  • 资助金额:
    $ 98.21万
  • 项目类别:
THREE-DIMENSIONAL TACTILE AND VISUAL FORM PERCEPTION
三维触觉和视觉形式感知
  • 批准号:
    6540026
  • 财政年份:
    1999
  • 资助金额:
    $ 98.21万
  • 项目类别:
Core--Scientific integration, shared services
核心--科学集成、共享服务
  • 批准号:
    6226581
  • 财政年份:
    1999
  • 资助金额:
    $ 98.21万
  • 项目类别:

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