born Aug. 14, 1840, Mannheim, Baden
died Dec. 22, 1902, near Graz, Austria
German neuropsychiatrist.
Educated in Germany and Switzerland, he taught psychiatry in the Austrian cities of Strasbourg, Graz, and Vienna, and he pursued studies that ranged from epilepsy and syphilis to genetic functions in insanity and sexual deviation. He also performed experiments in hypnosis. He is best remembered today for his Psychopathia sexualis (1886), a groundbreaking examination of sexual aberrations.