可见性操纵会影响与虚幻身体所有权相关的功能连接
Gustavo S P Pamplona1, Lena Salzmann2, Amedeo Giussani3
1SensoriMotorLab, Jules-Gonin Eye Hospital/Fondation Asile des Aveugles, Department of Ophthalmology/University of Lausanne, Lausanne, Switzerland; Rehabilitation Engineering Laboratory (RELab), Department of Health Sciences and Technology, ETH Zurich, Zurich, Switzerland; Department of Child and Adolescent Psychiatry and Psychotherapy, University Hospital of Psychiatry Zurich, University of Zurich, Zurich, Switzerland.
概括
在虚拟手幻觉 (VHI) 期间改变虚拟手的可见性会改变大脑的连接. 降低可见度会改变视觉和触觉之间的平衡,突出显示视觉的作用.
科学领域:
- 神经科学是一个神经科学.
- 心理学 心理学 心理学
- 认知科学 认知科学
背景情况:
- 手幻觉 (RHI) 展示了多感官集成如何创造身体所有权.
- 在RHI期间调节视觉输入可能会改变大脑活动和功能连接 (FC).
研究的目的:
- 调查虚拟手幻觉 (VHI) 期间虚拟手可见度的变化如何影响功能连接 (FC).
- 了解视觉输入对多感官集成和身体表现的神经机制的影响.
主要方法:
- 在45个神经类型的成年人身上利用功能磁共振成像 (fMRI).
- 使用MRI兼容机器人进行精确,可重复的触觉刺激.
- 在视觉触觉刺激期间通过视频编辑操纵虚拟手的可见性.
主要成果:
- 视觉和视觉触觉一致性模块化FC在头,传感器和默认模式网络之间.
- 随着VHI诱导的时间阶段,FC模式发生了动态变化.
- 减少虚拟手的可见性改变了身体表现中视觉和触觉输入之间的平衡.
结论:
- 改变的虚拟手可见性在VHI期间动态调节与多感官集成相关的FC.
- 视觉输入在塑造大脑对身体的表现方面发挥着至关重要的作用.
- 研究结果表明,在构建身体所有权时,感官输入之间的动态相互作用.
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