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相关实验视频

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The Crossmodal Congruency Task as a Means to Obtain an Objective Behavioral Measure in the Rubber Hand Illusion Paradigm
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用不同的刺激方式来评估手幻觉.

Pamela Svensson1, Nebojša Malešević1, Ulrika Wijk2

  • 1Department of Biomedical Engineering, Faculty of Engineering, Lund University, Lund, Sweden.

Frontiers in neuroscience
|October 2, 2023
PubMed
概括
此摘要是机器生成的。

触觉反,包括振动和电刺激,有效地在有能力的个人和截肢者中为假肢手创造了归属感. 这项研究增强了对感官反的理解,以改善假肢整合.

关键词:
电动动刺激是一种电动刺激.机械触觉刺激是一种机械触觉刺激.手幻觉是一种手幻觉.刺激模式是一种刺激方式.振动性刺激是一种振动性刺激.

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相关实验视频

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科学领域:

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

背景情况:

  • 触觉反对于假肢手的控制和所有权至关重要,但在商业设备中经常缺席.
  • 手幻觉 (RHI) 展示了身体所有权,可以适应假肢手.
  • 以前的研究表明,模式不匹配的刺激也可以诱导RHI.

研究的目的:

  • 为了比较机动触觉,振动触觉和电触觉反在诱导RHI的有效性.
  • 通过使用不同的感官反方式,研究在有能力参与者和跨辐射截肢者中RHI诱导.
  • 评估刺激时间对RHI强度的影响.

主要方法:

  • 经过修改的RHI实验,对27名健康参与者和3名跨辐射截肢者进行了测试.
  • 参与者接受了同步刺激 (刷牙,振动,电力,压力) 在完整的手/残余四肢,而手被刷.
  • 刺激应用于飞行和背部皮肤表面,通过问卷和自感漂移测试来测量结果.

主要成果:

  • 所有测试的触觉反模式 (机械触觉,振动触觉,电触觉) 都成功诱导了RHI.
  • 与压力刺激相比,电动和振动反导致更强的RHI.
  • 自身感知偏移在刺激阻断时增加,表明更强的幻觉和偏移到手.

结论:

  • 振动动和电动动的反是有效的诱导对假肢手的所有权感.
  • 可以使用模态不匹配的感官反来诱导RHI,这表明假肢感官集成的灵活性.
  • 这些发现支持开发先进的触觉反系统,以增强假肢体现和功能.