Carl Wickland
Carl August Wickland (born Carl August Wicklund, 14 February 1861 – 13 November 1945)[1] was a 20th-century Swedish-American psychiatrist and psychical researcher.
Wickland turned away from conventional medical psychology and toward the belief that psychiatric illnesses were the result of influence by spirits of the dead. Wickland came to believe that a large number of his patients had become possessed by what he called "obsessing spirits", Read more [...]