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Updated: May 30, 2025

Author Spotlight: Combined Peripheral Nerve Stimulation and Controllable Pulse Parameter Transcranial Magnetic Stimulation to Probe Sensorimotor Control and Learning
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对于脉冲参数可控制的跨皮磁刺激的戒指抑制设计.

Ziqi Zhang1, Hongfa Ding1, Zhou He1

  • 1Wuhan National High Magnetic Field Center, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China.

Journal of neural engineering
|January 27, 2025
PubMed
概括

这项研究引入了一种新的设计,用于抑制可控制的跨膜磁刺激 (cTMS) 设备中的声. 该方法显著减少了响声时间,提高了刺激效率和精度.

关键词:
脉冲参数可控制的TMS (cTMS) 系统脉冲波形是一种脉冲波形.声抑制 声抑制刺激选择性的选择性通过的磁刺激 (TMS)

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科学领域:

  • 神经科学是一个神经科学.
  • 生物医学工程 生物医学工程
  • 电气工程 电气工程

背景情况:

  • 可控制的横磁刺激 (cTMS) 设备使用半导体开关,但由于线圈电感和snubber电容器而发生声.
  • 这种声器件可能会对刺激效率和目标大脑激活的精度产生负面影响.

研究的目的:

  • 开发和验证用于cTMS设备的声抑制设计方法.
  • 为了最大限度地减少波形声对刺激效率和精度的影响.

主要方法:

  • 实施了三方面方法:层层的总线杆来减少寄生电感,改进了单向的snubber电路来消除环绕的循环,以及一个转换器来回收snubber能量.
  • 这些方法针对在cTMS设备架构中的声能量源.

主要成果:

  • 声的持续时间从大约1000μs大幅减少到30μs以下.
  • 实现的波形更接近理想的波形,最大限度地减少了刺激效应的变化.
  • 在目标激活区域减少了无法控制的偏差.

结论:

  • 开发的声抑制方法有效地提高了cTMS设备中的波形质量.
  • 这种技术可以提高刺激效率的可控性,并且可以很容易地应用于其他cTMS系统.