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相关概念视频

Somatosensation01:33

Somatosensation

38.5K
The somatosensory system relays sensory information from the skin, mucous membranes, limbs, and joints. Somatosensation is more familiarly known as the sense of touch. A typical somatosensory pathway includes three types of long neurons: primary, secondary, and tertiary. Primary neurons have cell bodies located near the spinal cord in groups of neurons called dorsal root ganglia. The sensory neurons of ganglia innervate designated areas of skin called dermatomes.
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Tactile and Chemical Senses01:27

Tactile and Chemical Senses

363
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.
363
Sensory Perception: Organization of the Somatosensory System01:11

Sensory Perception: Organization of the Somatosensory System

6.4K
The somatosensory system is the central and peripheral nervous system component that senses and processes touch, pressure, pain, temperature, and body position or proprioception. The process of sensation takes place at three levels:
The receptor level:
The receptor level is the first stage of sensation. It involves the detection of a stimulus by specialized sensory receptors. The stimulus must arrive within the receptor's receptive field. Next, the receptor converts the energy of the...
6.4K

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  3. 探索触觉和手臂使用之间的协同作用.
  1. 首页
  3. 探索触觉和手臂使用之间的协同作用.

相关实验视频

Applying Incongruent Visual-Tactile Stimuli during Object Transfer with Vibro-Tactile Feedback
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Applying Incongruent Visual-Tactile Stimuli during Object Transfer with Vibro-Tactile Feedback

Published on: May 23, 2019

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探索触觉和手臂使用之间的协同作用.

Yuhe Chen, Jonathan van Zanten, Michael Wiertlewski

    IEEE ... International Conference on Rehabilitation Robotics : [proceedings]
    |July 11, 2025

    在PubMed 上查看摘要

    概括
    此摘要是机器生成的。

    触觉刺激显著影响健康成年人掌握力适应. 然而,手臂使用与触觉感知没有显著的协同作用,为中风康复提供了洞察力.

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    Testing Tactile Masking between the Forearms
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    Tactile Semiautomatic Passive-Finger Angle Stimulator TSPAS

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    相关实验视频

    Applying Incongruent Visual-Tactile Stimuli during Object Transfer with Vibro-Tactile Feedback
    05:43

    Applying Incongruent Visual-Tactile Stimuli during Object Transfer with Vibro-Tactile Feedback

    Published on: May 23, 2019

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    Testing Tactile Masking between the Forearms
    08:05

    Testing Tactile Masking between the Forearms

    Published on: February 10, 2016

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    Tactile Semiautomatic Passive-Finger Angle Stimulator TSPAS
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    科学领域:

    • 神经科学是一个神经科学.
    • 生物力学 生物力学
    • 康复科学 康复科学 康复科学

    背景情况:

    • 脑卒中经常导致触觉缺陷,损害了诸如抓取等任务的运动控制.
    • 了解触觉缺陷的神经肌肉基础是有效的中风康复的关键.
    • 以前的研究探讨了中风后的抓取和手臂肌肉激活,但触觉感知和手臂使用之间的协同作用仍然不清楚.

    研究的目的:

    • 在受控环境中研究触觉感知和手臂使用之间的神经肌肉协同作用.
    • 通过对健康成年人进行测试,建立对中风患者未来研究的基线.
    • 为了验证一个新的实验平台来研究人类的触觉行为.

    主要方法:

    • 开发了一个全面的实验平台,配有杆臂和超声波摩擦调制.
    • 在不同的摩擦水平和手臂使用条件下测试了12名健康成年人.
    • 测量了抓取力适应和反射延迟,以评估神经肌肉反应.

    主要成果:

    • 在12个条件中的8个条件中,触觉刺激显著影响了抓取力适应 (p<0.05).
    • 手臂使用在抓取力适应 (p=0.44) 或反射延迟 (p=0.73) 中没有与触觉感知显著的协同作用.
    • 实验平台有效地模拟了受控的抓取任务,并提供了对触觉行为的洞察.

    结论:

    • 触觉传感输入在调节抓取力方面发挥着重要作用.
    • 在测试的运动控制任务中,手臂使用似乎与触觉感知没有协同作用.
    • 这些发现为未来研究中风相关的触觉缺陷和康复策略提供了基础.