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Does X-trodes really measure signals from my brain?
X-trodes provides three montages for recording brain activity from the face skin. The frontal EEG montage, with the ground on the nose, measures frontal brain activity from the forehead and temporal brain activity by the electrodes behind the ears. The frontal montage also includes two sensors for eye movements tracking. The posterior EEG patch has two frontal electrodes and four temporal electrodes. And the minimal patch’s third montage is located on the forehead and provides only two frontal EEG electrodes.