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Magnetoencephalography of Epilepsy with a Microfabricated Atomic Magnetrode



Svenja A. Knappe, Orang Alem, Alex M. Benison, Daniel S. Barth, John E. Kitching


We measured the magnetic signature of epileptiform discharges with high signal-to-noise ratio, using microfabricated atomic magnetometers based on laser spectroscopy of rubidium vapor and similar in size to scalp EEG electrodes. Sensitivity to neuronal currents approached that of superconducting sensors without the need for cryogenic technology. These measurements are a promising step toward the goal of high-resolution noninvasive telemetry of epileptic events in humans with seizure disorders.
The Journal of Neuroscience


atomic magnetometer, epilepsy, magnetoencephalography, MEG, microfabrication
Created October 22, 2014, Updated February 19, 2017