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在持续的姿势感知性头 (PPPD) 中,静脉和视觉对姿势稳定性和自我运动感知的影响
Renana Storm1,2, Skadi Gerkensmeier1,2, Hannah Keller1
1Department of Neurology, University Hospital Schleswig-Holstein, Campus Lübeck, Ratzeburger Allee 160, 23538, Lübeck, Germany.
Journal of neurology
|February 9, 2026
概括
持久的姿势感知性头 (PPPD) 患者表现出改变的姿势摇摆和自我运动感知. 多感官刺激可能会降低视觉敏感性,并纠正PPPD中的姿势误解.
科学领域:
- 神经科学是一个神经科学.
- 垂体系统研究研究 垂体系统研究
- 人体姿势控制 人体姿势控制
背景情况:
- 持久的姿势感知性头 (PPPD) 是通过视觉运动加剧的姿势不稳定性的特征.
- 在PPPD中,了解视觉刺激,前庭输入和姿势控制之间的相互作用至关重要.
研究的目的:
- 研究各种视觉和前庭运动刺激对PPPD患者的姿势摇摆和感知自我运动的影响.
- 为了比较PPPD患者和健康对照 (HC) 之间的反应.
主要方法:
- 在固体和泡表面上进行了体位摄影,使用电磁前庭刺激 (GVS) 和多种视觉刺激 (VS).
- 参与者包括28名PPPD患者和26名健康对照.
- 结果措施是姿势摇摆速度 (PSS) 和自我评价的感知自我运动.
主要成果:
- PPPD患者在前庭或联合视觉前庭刺激的坚固表面上表现出比HC更高的PSS,但仅视觉刺激并非如此.
- 在泡表面上,PSS的群体差异减少了,除了在基线条件下.
- 在所有条件下,PPPD参与者一致报告了更高的自我运动感知,与姿势摇摆有非线性关系.
结论:
- 这项研究挑战了在PPPD中普遍增加视觉敏感性的概念,因为仅视觉运动刺激并没有显著增加姿势摇摆差异.
- 多感官刺激似乎可以减轻视觉敏感性,并纠正PPPD的姿势误解.
- 与健康个体相比,PPPD患者的非线性自我运动感知表明,与健康个体相比,有不同的感知-姿势缩放机制.
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