感觉 (不) 完整:在下肢截肢的个体中,感知到身体完整性的神经相关性
Robin Bekrater-Bodmann1,2,3, Michaela Ruttorf4,5
1Department of Psychiatry, Psychotherapy and Psychosomatics, Uniklinik RWTH Aachen, Aachen, Germany. rbekraterbod@ukaachen.de.
Journal of neuroengineering and rehabilitation
|January 6, 2026
概括
感官刺激可以通过诱导肢幻觉来增强下肢截肢患者的身体完整性. 这种基于大脑的整合可能会改善假肢使用和康复结果.
科学领域:
- 神经科学是一个神经科学.
- 康复医学 康复医学 康复医学
- 生物医学工程 生物医学工程
背景情况:
- 截肢严重破坏身体的完整性,但假肢可以恢复这种感觉.
- 肢幻觉 (RLI) 模拟了这种体验,使用相关的视觉触觉刺激.
- 之前的RLI研究存在局限性,阻碍了对神经机制的理解.
研究的目的:
- 通过使用一种新的RLI设置,研究导致身体完整性变化的神经过程.
- 系统地操纵下肢截肢患者的身体完整性.
- 探索人工四肢外观和感官刺激对RLI的影响.
主要方法:
- 一项涉及34名单边下肢截肢的个体的横截面研究.
- 两个实验操纵人工四肢外观 (完整/受损) 和视觉触觉刺激 (同步/异步).
- 功能磁共振成像 (fMRI) 评估了RLI诱导期间的神经活动.
主要成果:
- 剩余四肢和完整的假肢的同步刺激诱导了所有权和改善了感知到的身体完整性.
- fMRI显示左上额叶叶片的激活与身体完整性的变化有关.
- 对RLI的神经活动在残留和非截肢四肢之间没有区别.
结论:
- 多式感官刺激可以提高下肢截肢者的身体完整性.
- 身体表现网络中的感官集成介绍了这种效果.
- 这些发现可能有助于开发具有体感反的先进假肢设备,以改善体现和康复.
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