Modern Medical Laboratory Journal

Electroencephalography (EEG) has been instrumental in making discoveries about cognition, brain function, and dysfunction. Hans Berger, a German psychiatrist, pioneered the EEG in humans in 1924. The EEG is an electrophysiological technique for the recording of electrical activity arising from the human brain.  EEG is particularly useful for evaluating patients with suspected seizures, epilepsy, and unusual spells. EEG uses the principle of differential amplification, or recording voltage differences between different points using a pair of electrodes that compares one active exploring electrode site with another neighboring or distant reference electrode.
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