
ALT Text from 'How to Build a Human' Functional magnetic resonance imaging (fMRI) measures the relative levels of O, saturation of the blood supply to different parts of the brain at a resolution of about 3 mm by 3 mm by 3 mm, and at roughly one-tenth of a second intervals. Trying to 'read thoughts' using fMRI is like using a flipbook animation drawn in crayon to determine if the offside rule was broken. Electroencephalography (EEG) measures the way that current is changing in different areas of the brain by measuring voltage at several locations on the scalp. To continue the previous analogy, trying to read thoughts' using EEG is like trying to determine if the offside rule was broken by listening to the noises from the crowd in the stadium.






