Magnetohydrodynamic wave resonance and the evocation of epileptiform activity by millitesla DC magnetic fields.
DC magnetic fields of low- to medium-flux density (nTesla to mTesla) affect a variety of brain activities. The cellular mechanism underlying these effects is unknown. A model involving magnetohydrodynamic waves and corresponding resonance phenomena is offered here as a solution. The model is discussed in relation to the evocation of epileptiform activity due to external DC magnetic fields in the mTesla range. The assumed existence of a resonance wave makes it possible to calculate the size of the involved area.
Alvager
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Department of Physics, Indiana State University, Terre Haute 47809, USA. phalva@scifac.indstate.edu
Moga
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D000818:Animals; D001921:Brain / Q000503:physiopathology*; D004574:Electromagnetic Fields; D004827:Epilepsy / Q000503:physiopathology*; D006801:Humans; D008954:Models, Biological; D051381:Rats