The equivalent of a nuclear and electron spin magnetic resonance magnetoencephalogram (NMR MEG and ESR MEG)
Brain and body electromagnetism represent an electric/magnetic flux of small intensity which is difficult to measure remotely. However, upon a certain excitation event and specifically spin excitation in the frame of magnetic resonance, it is possible to generate a measurable electric/magnetic flux.
How do we compensate for the low static magnetic field strength of the Earth's magnetic field?