Hans Berger

Hans Berger, a psychiatrist in Jena, recorded the first human electroencephalogram in 1924 by placing electrodes on the scalp and amplifying the brain's faint electrical rhythms. He published in 1929 and was met with scepticism until Edgar Adrian and Bryan Matthews in Cambridge confirmed his findings in 1934. The EEG became central to diagnosing epilepsy and to sleep and brain research.