Hans Berger (1873–1941)
Born 1873 CE, died 1941 CE.
Hans Berger (21 May 1873 – 1 June 1941) was a German psychiatrist. He is best known as the inventor of electroencephalography (EEG) in 1924, which is a method used for recording the electrical activity of the brain, commonly described in terms of brainwaves, and as the discoverer of the alpha wave rhythm which is a type of brainwave. Alpha waves have been eponymously referred to as the "Berger wave".
Text from the Wikipedia article Hans_Berger, licensed CC BY-SA 4.0.