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振网络标记器的下带带深脑刺激抑郁症

M Scherer¹, I E Harmsen², N Samuel³

¹Krembil Brain Institute, University Health Network, Toronto, Canada; Institute of Biomedical Engineering, University of Toronto, Canada.

Brain stimulation

|December 7, 2023

概括

研究人员使用下带深层大脑刺激 (SCC-DBS) 确定了治疗耐药抑郁症 (TRD) 的脑波生物标志物. 在特定的大脑网络中的α和gamma功率变化预测了治疗反应,为治疗优化提供了潜力.

科学领域:

神经科学是一个神经科学.
生物标志物生物标志物
大脑刺激大脑刺激

背景情况:

耐治疗抑郁症 (TRD) 是一个重大的临床挑战.
下带深大脑刺激 (SCC-DBS) 是TRD的新兴疗法.
了解SCC-DBS的神经机制对于优化治疗至关重要.

研究的目的:

识别特定区域的振荡调制,使TRD患者与健康对照区分开来.
在SCC-DBS期间识别振荡调制,以区分TRD治疗的响应者和不响应者.
探索刺激强度和频率对振荡活动的影响.

主要方法:

磁脑电图 (MEG) 数据从16名TRDSCC-DBS患者和25名健康受试者中收集.
进行了振荡功率分析,以确定大脑区域特定的调制.
分析检查了TRD患者 (SCC-DBS OFF) 和对照组之间的差异,以及响应者和不响应者 (SCC-DBS ON) 之间的差异.

主要成果:

在默认模式下,增加的α (8-12 Hz) 和减少的 (32-116 Hz) 功率,中央执行和体运动网络,布罗卡区域和语言环区分响应者和非响应者.
低刺激频率显示出比增加刺激强度更强的振荡调制效应.
这些发现意味着大脑区域参与了情绪控制,运动控制和语音视觉记忆相互作用.

结论:

已识别的电生理生物标志物 (α和gamma功率调制) 可以预测TRD中的SCC-DBS治疗反应.
这些生物标志物为治疗优化提供了功能代理的潜力.
刺激频率,特别是较低频率,可能是增强非响应者的治疗效果的关键参数.

关键词:

阿尔法和玛振荡的振荡.深度大脑刺激是什么?磁性脑电图 (MEG) 是一种磁性脑电图.带带鱼类的子鱼体.治疗耐药性抑郁症的治疗方法

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