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A century after the EEG was discovered, it remains a crucial tool for understanding the brain

By Giridhar Kalamangalam, Professor of Neurology, University of Florida

Jena, Germany, 1924: Working in near-isolation and with painstaking tediousness, the psychiatrist Hans Berger observes rhythmic electrical activity from the scalp of human subjects. He is convinced the activity arises from within the brain and coins the term “electroencephalogram.”

It is 10 years before the scientific community accepts Berger’s work, birthing the field of electroencephalography, or…

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