盲人可以通过一种新的触觉设备积极操纵虚拟对象
Mariacarla Memeo1, Giulio Sandini2, Elena Cocchi3
1Robotics, Brain and Cognitive Sciences Department Now With Center for Human Technologies, Fondazione Istituto Italiano di Tecnologia, Via Enrico Melen 83, Genoa, Italy.
Scientific reports
|December 21, 2023
概括
视力障碍者可以使用触觉设备自主构建虚拟触觉物体,增强空间技能和心理图像,用于康复. 这项技术允许与虚拟环境进行可测量的,部分自主交互.
科学领域:
- 康复科学 康复科学 康复科学
- 人与计算机的交互
- 触觉和触觉图形的触觉和触觉图形.
背景情况:
- 视力障碍者经常被动地参与康复练习,环境互动有限.
- 传统的触摸地图是静态的,无法编辑,阻碍了对空间技能的积极学习.
- 技术限制限制了交互式地图内容的应用,以发展空间技能.
研究的目的:
- 调查视力障碍者是否可以自主构建虚拟对象,使用心理图像和触觉反.
- 评估通过专门的触觉设备操纵虚拟触觉内容的可行性.
- 探索虚拟触觉图形在康复中增强空间定向和心理图像的潜力.
主要方法:
- 一个由12名盲人参与者组成的小组,使用鼠标形状的触觉装置从事双手任务.
- 参与者探索和操纵虚拟对象,将设备的触觉线索与手动的自感线索相结合.
- 测量了不同触摸分辨率的任务性能,评估了准确性,效率,可用性和执行时间.
主要成果:
- 参与者在将虚拟对象组装成复杂结构时,平均准确率为90.5%.
- 任务准确性主要是由效率 (动作数) 预测的,而可用性和分辨率并没有预测准确性.
- 男人表现出比女性更快的执行时间,表明任务完成速度的性别调节.
结论:
- 在没有视觉的情况下构建纯粹虚拟的触觉对象是可以实现和可衡量的,在视觉障碍者中展示了部分自主性.
- 开发的触觉系统和行为指标可以促进对空间定向至关重要的心理图像的刺激.
- 这种方法对远程康复场景和视力障碍者个性化康复方案具有前景.
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