在的焦点模型中,临时编码的电刺激的明显模式干扰了远程半球间合
Larissa Samara Santos Xavier1, Thiago Moreira Maia Montalvão1, Leonardo de Oliveira Guarnieri2
1Department of Physiology and Biophysics, Núcleo de Neurociências, Federal University of Minas Gerais, Belo Horizonte, Brazil.
对杏仁体复合体 (AMY) 的非周期性电刺激可以减少开氨酸 (KA) 注射后的发作传播. 这为闭环预测和调制提供了潜力.
科学领域:
- 神经科学是一个神经科学.
- 的研究研究.
- 计算神经科学是一种神经科学.
背景情况:
- 型活动可以传播到最初的发作焦点之外.
- 了解发作的传播机制对于开发有效的治疗方法至关重要.
- 杏仁体综合体 (AMY) 在网络中发挥作用.
研究的目的:
- 为了调查因开氨酸 (KA) 注射引发的发作的传播.
- 为了确定低频探测刺激的ipsilateral AMY是否会影响发作的传播.
- 评估相反AMY刺激的独特时间模式是否可以干扰半球间发作传播.
主要方法:
- 用于诱导型活动的hippocampal KA注射.
- 电刺激 (ES) 协议应用于AMY:双侧探测刺激 (2000毫秒间脉冲间隔) 和对侧传播刺激 (周期性[PS]或非周期性[NPS]模式).
- 从两个半球的AMY和海马体站点记录了局部场电生理学数据.
主要成果:
- 双侧AMY探针刺激没有干扰发作的传播,但观察到独立的对侧发作.
- 非周期性刺激 (NPS),但不是周期性刺激 (PS),显著减少了发作的持续时间,能量和发作的数量.
- 发作因果关系分析显示,PS和NPS治疗之间的传播模式存在显著差异.
结论:
- 由于KA引起的发作不仅仅局限于注射部位,即使在 status epilepticus.
- 暂时编码的AMY非周期性刺激在调节发作传播方面显示出有前途.
- 这项研究表明,闭环系统可能使用探测刺激来预测和编码刺激来控制.
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