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通过皮层-皮层配对关联刺激来增强人类行动抑制
Lorenzo Però1, Nicolò Arlati1, Laura Lenzi1
1Center For Studies and Research in Cognitive Neuroscience, Department of Psychology "Renzo Canestrari," Cesena Campus, Alma Mater Studiorum Università di Bologna, Cesena, Italy.
皮层-皮层配对关联刺激 (ccPAS) 通过增强前补充运动区域 (preSMA/SMA) 和左运动皮层 (lM1) 之间的神经可塑性来改善反应抑制. 这为行动抑制网络提供了新的见解.
科学领域:
- 神经科学是一个神经科学.
- 认知神经科学 认知神经科学
- 发动机控制器的控制器
背景情况:
- 反应性抑制对于控制行为至关重要,但它的神经基础尚不清楚.
- 反应性抑制受损与各种神经和精神疾病有关.
- 了解行动抑制网络 (AIN) 对于开发向疗法至关重要.
研究的目的:
- 通过使用一种新的TMS协议,研究潜在的反应性抑制的神经机制.
- 在AIN中探索特定大脑区域的功能相关性.
- 为了确定皮层-皮层配对关联刺激 (ccPAS) 是否可以调节抑制作用.
主要方法:
- 使用ccPAS在关键AIN区域之间诱导赫比峰时间依赖可塑性 (STDP).
- 在前补充运动区域 (preSMA/SMA) 和左运动皮层 (lM1) 之间有针对性的连接.
- 通过停止信号任务 (SST) 和通过运动唤起潜力 (MEP) 的神经可塑性来评估行为变化.
主要成果:
- 在ccPAS针对preSMA/SMA-lM1通路后,反应性抑制性能显著改善.
- 在preSMA/SMA-lM1和右M1-lM1刺激后,MEP增加了,表明了可塑性.
- 在前SMA/SMA组中观察到静止运动值 (rMT) 和行为改善之间的相关性.
结论:
- ccPAS有效地通过调节AIN内的可塑性来增强反应抑制.
- 预SMA/SMA-lM1通路在反应性抑制中发挥着关键作用.
- 这些发现为行动抑制网络的功能动态提供了新的见解.
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