Magnetohydrodynamic Wave Resonance and the Evocation of Epileptiform Activity by Millitesla DC Magnetic Fields

Abstract

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 magnetohy-drodynamic 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.

Key Words:

• Magnetohydrodynamics
• epilepsy
• hippocampus