功能连接的变化与通过下丘脑刺激调节认知控制有关
Johannes Achtzehn1,2, Friederike Grospietsch1, Alexandra Horn1
1Department of Neurology, Charité-Universitätsmedizin Berlin, Berlin, Germany.
Human brain mapping
|December 10, 2024
概括
在帕金森病 (PD) 中的脑下深层刺激 (DBS) 改变了大脑的连接,在复杂的任务中损害了抑制控制. 这种功能网络调制会影响PD患者的运动和认知功能.
科学领域:
- 神经科学是一个神经科学.
- 神经学 神经学
- 生物医学工程 生物医学工程
背景情况:
- 帕金森病 (PD) 中的脑下深层刺激 (DBS) 影响运动和认知功能,特别是在高度冲突的情况下.
- 了解这些影响背后的神经机制对于优化PD治疗至关重要.
研究的目的:
- 研究由STN-DBS诱导的静态功能连接 (RSFC) 变化与反应调制和运动抑制之间的关系.
- 探索STN-DBS如何影响PD患者高冲突视觉运动任务中的抑制控制.
主要方法:
- 14名PD患者接受了视觉运动任务,其中下核 (STN) DBS ON和OFF.
- 休息状态功能性MRI (rs-fMRI) 数据在两个DBS条件下获得.
- 使用基于链接的网络统计数据来分析RSFC的变化及其与行为结果的相关性.
主要成果:
- STN-DBS调节的RSFC,与行为变化相关.
- 减少反应时间适应和增加运动速度被观察到与DBS ON.
- 运动皮层区域,基底和丘脑之间的连接性减弱与反应时间的变化有关.
- 增加的白 - thalamic连接与更高的运动速度相关联.
结论:
- 运动皮质 - 基底质网络的STN-DBS诱导的脱有助于PD中抑制控制的受损.
- 这些发现强调了DBS在PD中的功能网络调制的作用.
- 这项研究表明,在帕金森病的STN-DBS期间,特定的连接性变化是行为缺陷的基础.
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