= Magnetoencephalography
{title2=MEG}
{wiki}
<Magnetoencephalography> measures very small <magnetic fields> generated by electrical activity in neural <tissue>. It supplies a time-resolved signal that can constrain when activity changes relative to an event.
Inferring its neural sources is an inverse problem: sensor readings combine contributions from multiple locations and depend on their geometry. The technique therefore does not directly display the activity of one isolated <neuron>.
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