Science Turns Attention to Charged
Particles and Human Behavior
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by Mitch Battros - Earth Changes Media August 02 2013 |
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Much has been written in the last decade about the potential of Transcranial Magnetic Stimulation (TMS) as a new diagnostic and therapeutic tool in clinical neurophysiology. TMS is a painless and non-invasive technique for stimulating cortical tissue by means of magnetic induction. TMS has been used to map the motor cortex by recording evoked responses, and appears to show potential for treating certain brain disorders, from Parkinson's disease to depression. |
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This new research is set to improve the accuracy and depth of the TMS method. In a paper published in the scientific journal BioMedical Engineering, a proposal highlights a different method of stimulating cortical tissue, which in principle, could permit much greater localization of the site of excitation as well as deeper penetration into the brain. |
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The idea is to induce electrical currents by propagating an ultrasonic wave in the presence of a strong magnetic field. The currents are generated by Lorentz forces on moving ions produced by the oscillating sound wave. |
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Lead investigator Stephen J Norton, National Institute of Standards and Technology, presents an analysis of the distribution of the electric field induced by an ideally collimated ultrasonic beam in a homogeneous conducting medium. |
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The analysis allows us to calculate the magnitude of the electric field strengths that can be expected, and shows that the highest practical fields that can be induced by ultrasound. FULL ARTICLE - http://bit.ly/19Cnthg
Mitch Battros Web: http://www.earthchangesmedia.com
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