在患有 dystonia 的儿童中, Globus pallidus internus 活动在自愿运动期间增加
Estefania Hernandez-Martin1, Maral Kasiri2, Sumiko Abe1
1Department of Electrical Engineering and Computer Science, University of California, Irvine, Irvine, CA, USA.
iScience
|June 30, 2023
概括
这项关于 dystonia 的研究发现,在基底中,大脑活动模式异常,而不是抑制减少. 研究结果表明,准内球体 (GPi) 功能障碍可能会改善深度大脑刺激 (DBS) 的结果.
科学领域:
- 神经科学是一个神经科学.
- 运动障碍 运动障碍
- 神经学 神经学
背景情况:
- 基底功能速率模型假定 dystonia 源于由于减少的白输入而引起的乳头脱抑制.
- 功能失调性脑 (DCP) 提供了一个模型来研究在儿童评估深度大脑刺激 (DBS) 的 dystonia 机制.
研究的目的:
- 为了测试 dystonia 涉及由降低体输入引起的乳头脱抑制的假设.
- 分析与运动相关的神经活动和DCP的儿童的基底和thalamic区域的连接.
主要方法:
- 通过使用DBS评估数据,研究了内部白色球体 (GPi),丘脑 (VoaVop) 和下丘脑核 (STN) 中与运动相关的活动.
- 进行了连接分析,以评估STN,VoaVop和GPi之间的神经合.
主要成果:
- 在运动期间观察到GPi,VoaVop和STN的显着β频段频率峰值,但在静止状态下没有.
- 连接分析显示,STN-VoaVop和STN-GPi的合比GPi-STN的合更强.
- 这些发现与减少的胸膜抑制假设相矛盾.
结论:
- 腹痛可能涉及复杂的异常抑制/除抑制模式,而不仅仅是降低GPi活动.
- 在GPi功能中的异常与 dystonia 有关.
- 针对STN和GPi的DBS有效性可能来自于纠正GPi功能障碍.
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