Multi-sensor magnetoencephalography with atomic magnetometers

Phys Med Biol. 2013 Sep 7;58(17):6065-77. doi: 10.1088/0031-9155/58/17/6065. Epub 2013 Aug 12.

Abstract

The authors have detected magnetic fields from the human brain with two independent, simultaneously operating rubidium spin-exchange-relaxation-free magnetometers. Evoked responses from auditory stimulation were recorded from multiple subjects with two multi-channel magnetometers located on opposite sides of the head. Signal processing techniques enabled by multi-channel measurements were used to improve signal quality. This is the first demonstration of multi-sensor atomic magnetometer magnetoencephalography and provides a framework for developing a non-cryogenic, whole-head magnetoencephalography array for source localization.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Equipment Design
  • Evoked Potentials, Auditory
  • Humans
  • Magnetoencephalography / instrumentation*