https://en.wikipedia.org/wiki/Pyotr_Gannushkin
a Russian psychiatrist who developed one of the first theories of psychopathies known today as personality disorders.[1] He was a student of Sergei Korsakoffand Vladimir Serbsky. Not only did he manage to delineate certain organizational tasks of social psychiatry, but he also clearly formulated the main methodological aim of social psychiatrists, to combine methods of individual clinical analysis with sociological research and generalization.[2][3
Taken as a whole, Gannushkin's bibliography includes three monographs, 19 articles, nine introductory notes for monographs and anthologies, and approximately 100 reviews.
Pyotr Gannushkin (1875–1933) — a Russian psychiatrist who created a classification of personality disorders, then known as "psychopathies", that intersect in many respects with those of Theodore Millon.
