在前额叶皮层中,theta爆发刺激的多样化和分布的血液动力学效应
1School of Psychology, Faculty of Medicine and Health, University of Leeds, LS2 9JT, UK.
Neuroimage. Reports
|September 8, 2025
概括
甲爆刺激 (TBS) 根据半球和类型不同影响大脑的氧化. 左侧间歇性TBS降低了氧化,这表明潜在的认知益处,而连续的TBS则双边降低了氧化.
科学领域:
- 神经科学是一个神经科学.
- 认知科学 认知科学
- 神经成像是一种神经成像.
背景情况:
- 泰达爆发刺激 (TBS) 是一种非侵入性脑刺激技术,有可能调节认知和运动技能.
- 它对大脑氧化的影响,特别是在背侧前额皮层 (DLPFC) 刺激期间,在半球内和半球之间,仍然在很大程度上未被探索.
- 本研究使用功能近红外光谱 (fNIRS) 调查了这些效应.
研究的目的:
- 在TBS期间调查DLPFC中的血液氧化变化.
- 检查不同的TBS协议 (间歇性与连续性) 和刺激半球如何影响神经血管合.
- 要了解这些氧化变化的半球分散.
主要方法:
- 44名参与者接受了四个条件的2x2设计:使用间歇性TBS (iTBS) 和连续TBS (cTBS) 进行左/右DLPFC刺激.
- 功能近红外光谱 (fNIRS) 用于同时测量血液氧化.
- fNIRS数据通过12个光通道覆盖了左,中,右前额叶皮质.
主要成果:
- 神经血管合在刺激过程中是明显的.
- 右半球iTBS导致半球内和半球之间预期的激发.
- 左半球iTBS降低了ipsilaterally和contralaterally的氧化;在任何半球上的cTBS降低了氧化血红蛋白 (HbO),与抑制作用保持一致.
结论:
- 这项研究为DLPFC的刺激性和抑制性TBS期间血液氧化变化的程度和分散提供了新的见解.
- 研究结果表明,TMS刺激可以诱导全球和半球间的效应.
- 左DLPFC iTBS诱导的HbO下降可能与认知益处有关.
关键词:
背侧前额叶皮层 (DLPFC)功能性近红外光谱学 (fNIRS) 是一种近红外光谱技术.非侵入性脑刺激 (NIBS) 是一种非侵入性脑刺激.通过的磁性刺激 (TMS)cTBS 服务提供商在ITBS中,ITBS是ITBS.更多相关视频
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