在持续的姿势感知性头 (PPPD) 中,视觉和前庭运动感知
Renana Storm1, Janina Krause1,2, Smila-Karlotta Blüm1,2
1Department of Neurology, University Hospital Schleswig-Holstein, University of Lübeck, Campus Lübeck, Ratzeburger Allee 160, 23538, Lübeck, Germany.
Journal of neurology
|March 5, 2024
概括
持续的姿势感知性头 (PPPD) 涉及异常的感官缩放. 患有PPPD的患者表现出视觉运动感知和前体反应的改变,这表明存在独特的感官处理问题.
科学领域:
- 神经科学是一个神经科学.
- 垂体系统 垂体系统 垂体系统
- 感官感知是一种感官感知.
背景情况:
- 持续的姿势感知性头 (PPPD) 是一种慢性疾病,其特点是感知不稳定.
- 症状在视觉复杂的环境中恶化,视觉依赖/运动敏感性是已知的预测因素.
- PPPD的潜在病理生理学仍然在很大程度上是未知的.
研究的目的:
- 为了调查在PPPD中假设的异常感官感知缩放机制.
- 为了比较PPPD患者和健康对照 (HC) 之间的视觉和前庭感知值.
主要方法:
- 使用随机点运动图评估视觉运动连贯度值.
- 通过动前庭刺激 (GVS) 和被动椅子旋转评估前庭自我运动感知值.
- 对比患者和HC在运动和假 (无运动) 刺激试验中的表现.
主要成果:
- PPPD患者的视觉运动感知值高于HC患者.
- 与HC相比,患者在椅子旋转期间表现出较低的GVS感知值,但与HC相比,在椅子旋转期间表现出类似的自我运动感知.
- 在PPPD患者中,正确的知觉在无运动试验中随着旋转性自我运动值的增加而增加,与HC不同.
结论:
- 研究结果表明,PPPD中存在异常的感官感知缩放,特别是在视觉运动处理和前庭视觉集成方面.
- 改变的感觉缩放可能会导致PPPD患者经历的慢性头和不稳定.
- 垂体视觉值可能预测PPPD中的错误感官赋值,突出显示潜在的诊断标记.
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