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The inner ear assumes dual functionalities of auditory perception and equilibrium maintenance. The vestibule is the organ responsible for balance. This organ contains mechanoreceptors, specifically hair cells, endowed with stereocilia, which aid in deciphering information regarding the position and motion of our heads. Two intrinsic components, the utricle and saccule, help perceive head position, while the semicircular canals track head movement. Neurological messages initiated in the...
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The hierarchy of motor control refers to the different levels of organization and processing involved in controlling movement in the body. These levels range from higher cortical areas involved in planning and decision-making to lower spinal cord reflexes that respond automatically to external stimuli.
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相关实验视频

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A Structured Rehabilitation Protocol for Improved Multifunctional Prosthetic Control: A Case Study
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人机界面用于使用耳部肌肉进行二维方向盘控制.

Daniel J L L Pinheiro1,2, Jean Faber1,3, Silvestro Micera2,4

  • 1Division of Neuroscience, Department of Neurology and Neurosurgery, Neuroengineering and Neurocognition Laboratory, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil.

Frontiers in neurorobotics
|June 21, 2023
PubMed
概括

这项研究引入了一种新的方式,让人们使用耳朵肌肉 (AM) 控制设备. 素朴的参与者学会了以两度的自由度移动光标,表现出更好的性能和较低的认知负载,为新的脑计算机接口铺平了道路.

关键词:
神经修复品是一种神经修复品.耳部肌肉 耳部肌肉 耳部肌肉人机界面 人机界面发动机解码 发动机解码方向盘控制器控制方向盘的控制器.

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科学领域:

  • 生物医学工程 生物医学工程
  • 神经科学是一个神经科学.
  • 康复技术 康复技术 康复技术

背景情况:

  • 人机界面 (HMI) 为运动残疾 (如脊髓损伤) 的人提供了恢复对外部设备控制的潜力.
  • 现有的HMI解决方案需要改进解码算法,硬件和用户学习.
  • 耳部肌肉 (AMs) 是遗留的肌肉,在神经损伤后经常被保存,这使得它们成为HMI的有希望的目标.

研究的目的:

  • 开发和评估一种新的解码和训练范式,用于使用耳部肌肉的HMI.
  • 为了使无知参与者能够使用他们的AMs控制一个具有两度自由度的二维虚拟光标.
  • 评估与这种基于AM的HMI相关的学习曲线,表现和认知负载.

主要方法:

  • 来自AM的表面电动图 (sEMG) 信号被用来调节2D空间中的光标速度和方向.
  • 实现了锁定机制,以允许独立控制和停止沿每个轴的光标移动.
  • 对五名非残疾志愿者进行了五次训练方案,其中包括一个中心外任务,包括一个评估认知负载的双任务条件.

主要成果:

  • 参与者在训练后的任务成功率 (从52.78%提高到72.22%) 和轨迹表现显著改善.
  • 基于AM的HMI即使在认知要求高的双重任务条件下也有效 (66.67%的成功率).
  • 参与者报告说,在以后的训练中,他们的精神需求和精力减少了,这是通过NASA任务负载指数来衡量的.

结论:

  • 无知的人可以学会有效地控制两度自由度的光标,使用他们的耳部肌肉,以最小的认知负担.
  • 这种基于AM的新型解码和培训范式代表了向开发针对运动障碍患者的先进HMI迈出的有希望的第一步.
  • 辅助设备在神经损伤后的保存性强调了它们在辅助技术中恢复功能控制的潜力.