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Brain Imaging

Brain Imaging

Brain imaging technologies provide critical insights into both the structure and function of the human brain, enabling medical professionals and researchers to diagnose, study, and treat neurological disorders or psychiatric disorders more effectively.
These technologies include computerized axial tomography (CAT or CT scans), positron-emission tomography (PET scans), magnetic resonance imaging (MRI), functional magnetic resonance imaging (fMRI), and Transcranial Magnetic...

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Updated: Apr 16, 2026

The Use of Magnetic Resonance Spectroscopy as a Tool for the Measurement of Bi-hemispheric Transcranial Electric Stimulation Effects on Primary Motor Cortex Metabolism

The Use of Magnetic Resonance Spectroscopy as a Tool for the Measurement of Bi-hemispheric Transcranial Electric Stimulation Effects on Primary Motor Cortex Metabolism

Published on: November 19, 2014

无线磁热深度大脑刺激

Ritchie Chen¹, Gabriela Romero², Michael G Christiansen¹

¹Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.

Science (New York, N.Y.)

|March 14, 2015

概括

此摘要是机器生成的。

研究人员开发了使用磁纳米粒子激活热敏神经元的无线深度大脑刺激. 这种方法可以实现远程,微创的神经刺激,用于研究大脑电路和治疗神经疾病.

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科学领域:

神经科学是一个神经科学.
生物技术是生物技术.
材料科学材料科学材料科学

背景情况:

深度大脑刺激 (DBS) 对于研究大脑电路和治疗神经系统疾病至关重要.
目前的DBS方法通常需要侵入性植入物和有线连接,限制慢性应用.
针对特定的神经元群体仍然是大脑刺激的挑战.

研究的目的:

展示一种使用磁纳米粒子的神经刺激的新无线方法.
研究磁热激活热敏感神经元的潜力,以深度刺激大脑.
评估慢性无植入神经刺激的可行性.

主要方法:

使用磁纳米粒子,当暴露于交替磁场时,通过歇斯底里产生热量.
激活热敏素受体TRPV1使用纳米粒子产生的热进行神经刺激.
在小鼠的腹膜区域进行无线磁热刺激.
在目标和预测大脑区域监测神经元活动.

主要成果:

通过磁热激活TRPV1(+) 神经元,成功实现了远程和最小侵入性神经刺激.
在无线刺激的反应中,经过广泛和可逆的神经元发射.
观察到目标腹肌区域神经元及其投射部位的兴奋.
确认纳米粒子在大脑中持续超过一个月,使慢性刺激成为可能.

结论:

无线磁热刺激为深度大脑刺激提供了一个有希望的方法.
这种技术可以进行慢性,无植入的神经调制.
该方法有助于研究完整的大脑电路,并有可能治疗神经系统疾病.