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相关概念视频

Sensory Modalities01:15

Sensory Modalities

Sensation typically is the process by which the sensory receptors and sense organs detect stimuli from the internal and external environment and transmit this information to the central nervous system for processing.
General senses refer to the broad category of sensory information detected by receptors in the body and can be further grouped into somatic and visceral senses. Somatic sensations include touch, pressure, temperature, and pain and are essential for navigating our environment and...
Design Example: Resistive Touchscreen01:14

Design Example: Resistive Touchscreen

A device engineer plays a crucial role in designing user interfaces for mobile devices. One such interface is the resistive touchscreen, which fundamentally consists of two metallic layers: a flexible upper layer and a rigid lower layer, separated by a narrow gap. The high resistance between these two layers is a key characteristic of this design.
When a user touches the screen, the two layers make contact at a specific point known as the touchpoint. This contact reduces the resistance between...
Depth Perception and Spatial Vision01:15

Depth Perception and Spatial Vision

Depth perception is the ability to perceive objects three-dimensionally. It relies on two types of cues: binocular and monocular. Binocular cues depend on the combination of images from both eyes and how the eyes work together. Since the eyes are in slightly different positions, each eye captures a slightly different image. This disparity between images, known as binocular disparity, helps the brain interpret depth. When the brain compares these images, it determines the distance to an object.
Tactile and Chemical Senses01:27

Tactile and Chemical Senses

Tactile senses encompass touch, temperature, and pain, each mediated by specific receptors. Touch receptors detect mechanical energy or pressure against the skin. Sensory fibers from these receptors enter the spinal cord and relay information to the brain stem. Here, most fibers cross over to the opposite side of the brain. The touch information then moves to the thalamus, which projects a map of the body's surface onto the somatosensory areas of the parietal lobes in the cerebral cortex. This...
Visual Agnosia01:12

Visual Agnosia

Visual agnosia is a condition characterized by the inability to recognize visually presented objects despite having normal vision. For instance, a person with visual agnosia can describe the shape and color of an object but cannot identify or name it. This impairment does not affect their visual field, acuity, color vision, brightness discrimination, language, or memory. An example of this condition in a social setting is someone at a dinner party asking for "that silver thing with a round end"...

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相关实验视频

Updated: Jun 30, 2026

Haptic/Graphic Rehabilitation: Integrating a Robot into a Virtual Environment Library and Applying it to Stroke Therapy
13:44

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一个改变形状的触觉导航接口用于视力障碍的视力障碍.

Robert Quinn1, Stephen Murtough2, Henry de Winton1

  • 1MakeSense Technology Ltd, London, UK.

Scientific reports
|December 10, 2024
PubMed
概括
此摘要是机器生成的。

一个新的改变形状的触觉接口为视力障碍者 (VI) 提供了卓越的非视觉导航. 这项技术在效率和用户体验方面与自然视觉相美,为先进的数字导航辅助器铺平了道路.

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科学领域:

  • 人与计算机的交互
  • 辅助技术 辅助技术 辅助技术
  • 触觉学是指触觉学是指触觉学.

背景情况:

  • 视力障碍 (VI) 患者依赖于传统的辅助工具,如白棍和导游狗,以导航.
  • 当前的本地化技术为VI导航提供了潜力,但在非视觉人机界面方面面临障碍.
  • 对于先进的导航系统来说,精确的空间指导的有效非视觉通信至关重要.

研究的目的:

  • 引入和评估一种用于非视觉空间指导的新型形状变化的触觉接口.
  • 将触觉界面的性能和用户体验与VI患者的振动反和自然视觉进行比较.
  • 评估改变形状的接口作为未来视觉障碍者数字导航系统的组成部分的潜力.

主要方法:

  • 开发了一个可以改变形状的触觉接口 (Shape),通过身体曲提供二维空间指导.
  • 有VI的人和有视力的参与者使用形状和振动反 (振动) 在3D空间中定位虚拟目标.
  • 使用虚拟现实系统追踪实时设备定向和位置;通过Likert调查评估用户体验.

主要成果:

  • 患有VI的个体使用Shape与Vibration相比,实现了显著更快,更有效的目标定位.
  • 在Shape界面和视力正常参与者的自然视力之间,没有发现时间或效率的显著差异.
  • 在用户体验调查中,参与者对Shape界面的评价明显高于Vibration,与自然视觉相比没有显著差异.

结论:

  • 改变形状的触觉接口在非视觉导航中表现出令人信服的有效性.
  • 这项技术显示了显著提高视力障碍者数字导航系统的潜力.
  • 接口提供与自然视觉相提并论的用户体验,突出显示了它对未来辅助技术的可行性.