增加的感觉运动和上方头顶激活与减少的写作不流性相关,在作家的 dystonia
Noreen Bukhari-Parlakturk1,2, Patrick J Mulcahey2,3, Michael Fei1
1Department of Neurology, Duke University School of Medicine, Durham, NC 27705, USA.
medRxiv : the preprint server for health sciences
|April 1, 2025
概括
作家的 (WC) dystonia 涉及异常的写作姿势. 感觉运动和身网络活动的减少与WC患者的写作困难相关,与健康志愿者不同.
科学领域:
- 神经科学是一个神经科学.
- 运动障碍 运动障碍
- 脑部成像 脑部成像
背景情况:
- 作家 (WC) 是一种影响手写的致残焦点 dystonia.
- 在WC病理生理学中,网络层面的相互作用仍然不清楚.
- 之前的研究发现了感觉运动,头部,基底腺和小脑异常.
研究的目的:
- 调查功能网络 (FN) 激活和WC中的写作不流之间的关系.
- 为了比较WC患者和健康志愿者 (HVs) 在写作任务期间的网络活动.
- 探索潜在的基于网络的机制背后的WC症状.
主要方法:
- 在写作任务期间进行功能性MRI (fMRI) 和动力学分析.
- 组独立组件分析 (ICA) 用于识别功能网络 (FN).
- 在FN活动 (左传感运动,上,小脑,基底) 和峰值加速 (写作失流度测量) 之间的相关性分析.
主要成果:
- 确定了21个FN,所有这些FN都在编写任务期间活跃.
- 在WC和HV之间,在整体FN活动中没有显著的群体差异.
- 左感觉运动和上侧顶部FNs的活性降低与WC患者的写作不流性增加相关,与HV患者不同.
结论:
- 功能性网络动态的变化,特别是感觉运动和体区域的变化,与WC的写作障碍有关.
- 在这些网络中加强激活可能是一个补偿机制,以减轻流失.
- 研究结果提出了一个机械学假设,用于开发针对WC dystonia的网络定向神经调节疗法.
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