Magnetoencephalography; MEG

Question 1

Magnetoencephalography; MEG

Answer 1

Electrical current produces magnetic field orthogonal (perpendicular) to the electrical field

Question 2

Active neurons

Answer 2

Can measure neurons that are parallel to the skull (not possible in EEG)

Therefore more possible to obtain signals from deep brain structure and better spatial resolution

Question 3

Disadvantage

Answer 3

Very expensive, subjects movements are restricted as it’s not attached like in EEG.