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MECHANISMS OF SPATIAL LOCALIZATION FOR AIMED MOVEMENTS

目标运动的空间定位机制

基本信息

批准号：
2460332
负责人：
RICHARD A ABRAMS
金额：
$ 10.01万
依托单位：
WASHINGTON UNIVERSITY
依托单位国家：
美国
项目类别：
财政年份：
1990
资助国家：
美国
起止时间：
1990-08-01 至 1999-07-31
项目状态：
已结题

来源：
https://reporter.nih.gov/project-details/2460332
关键词：
attention behavioral /social science research tag body movement cues eye movements human subject limb movement neural information processing saccades space perception visual fixation

项目摘要

In order to interact effectively with the world, people depend on information about the spatial locations of objects in their immediate environment. This information is needed to accurately guide overt movements of the eyes and limbs, as well as covert movements of attention. Because spatial orientation comprises such an integral part of one's daily life, a thorough understanding of the mental and physical processes that underlie it will have important implications for a wide range of behaviors. A detailed model of such behaviors may ultimately facilitate the diagnosis and treatment of movement and attentional disorders, and the design of prosthetic and robotic devices. The research proposed herein is directly concerned with contributing toward such a model. The present project is designed to learn more about the mental mechanisms that underlie the production of eye movements, limb movements, and movements of visual attention. To do this, answers are sought to fundamental questions about such behaviors including: To what extent do eye, hand, and attention movement systems obey similar operating principles or perhaps employ shared mental mechanisms? To what extent do these systems share spatial information? In what coordinate systems and reference frames are the various movements planned and implemented? To answer these questions, three series of experiment are proposed. The first series examines details of eye movements and the extent to which some eye movements may be inhibited by prior movements of visual attention. These experiment will provide new insights into eye movements, visual attention, and the relation between the two. The second series of experiments focuses specifically on eye-hand coordination by examining two phenomena that are known to affect eye movements, and assessing the possible influence of these phenomena on limb movements. Experiments in the third series examine additional questions about the relation between eye movements, hand movements and attention by examining attentional coordinate systems in which movements are planned. Results of the proposed experiments should provide new insights into fundamental processes underlying various aspects of perception, cognition, and action that are relevant to spatially oriented behavior. With these insights, it should be possible to better diagnose, treat, and prevent serious movement and attentional disorders related to mental health.

为了有效地与世界互动，人们依赖于关于对象在其直接空间中的空间位置的信息环境需要这些信息来准确地引导明显的动作以及注意力的隐蔽运动。因为空间定向是一个人日常生活中不可或缺的一部分，深入了解心理和生理过程，它将对广泛的行为产生重要影响。一这些行为的详细模型最终可能有助于诊断运动和注意力障碍的治疗，假肢和机器人设备。本文提出的研究直接致力于为这样一个模式做出贡献。本项目旨在更多地了解心理机制这是眼球运动，肢体运动，视觉注意力的运动。为了做到这一点，寻求答案，关于这些行为的基本问题包括：在多大程度上眼、手和注意力运动系统遵循类似的操作原理或者使用共享的思维机制这些系统在多大程度上共享空间信息？在什么样的坐标系和参考系中各项运动是否有计划和执行？为了回答这些问题，提出了三个系列的实验。的第一个系列检查眼动的细节和程度，眼睛运动可能被视觉注意力的在先运动抑制。这些实验将提供新的见解，眼动，视觉注意力，以及两者之间的关系。第二系列实验的重点是眼手协调，通过检查两个已知会影响眼球运动的现象，并评估这些现象对肢体运动的可能影响。的实验第三个系列研究了关于眼睛和眼睛之间关系的其他问题，注意力坐标的研究在这些系统中，计划进行移动。拟议实验的结果应提供新的见解，感知，认知，与空间导向行为相关的行为。与这些有了洞察力，应该可以更好地诊断，治疗和预防与心理健康有关的严重运动和注意力障碍。