Emil Kraepelin
German psychiatrist who built an influential system of classifying mental illness
German psychiatrist who worked in Wilhelm Wundt's laboratory and classified mental illness by its course, separating dementia praecox from manic-depressive illness. He also promoted eugenics and racial hygiene.
Why this person matters
Kraepelin's classification still shapes diagnostic systems: its main features appear in the ICD and DSM. Alois Alzheimer was among his Heidelberg collaborators, and Eugen Bleuler renamed dementia praecox schizophrenia in 1911.
Main contributions
Compendium der Psychiatrie
His first book (1883) argued that psychiatry is a branch of medical science that should be studied through observation and experiment. Over thirty years it grew into the multi-volume Lehrbuch.
Classification by course of illness
He separated dementia praecox, seen as a biological illness, from manic-depressive illness, which is episodic and has a favourable prognosis. In the 1899 sixth edition, catatonia, dementia paranoides and hebephrenia are treated as expressions of one disease, dementia praecox.
Research institute in Munich
In 1917 he founded the German Institute for Psychiatric Research, after a large donation from the banker James Loeb. It joined the Kaiser Wilhelm Society in 1924 and is today the Max Planck Institute of Psychiatry.
Context and limits
Kraepelin held eugenic and racial-hygiene views: in 1900 he argued that psychiatric institutions should serve eugenic purposes, and a review in PMC calls his theories about genetic predispositions in Jews among the most problematic aspects of his work. His protégé Ernst Rüdin later helped shape Nazi racial hygiene policy. Oswald Bumke rejected degeneration theory in 1912. His classification remains influential, but his social views are widely criticised.
In your introductory course
Psychological disorders.Appears in disorders chapters as the origin of the categorical approach to diagnosis and of the distinction that became schizophrenia versus mood disorder.
Related course reading: Psychology 2e, section 15.1. This is course context rather than a biographical source.
Years of active work
- 1883
He published the Compendium der Psychiatrie.
- 1886
He became professor of psychiatry at Dorpat.
- 1899
The sixth edition of his textbook treated dementia praecox as a single disease.
- 1917
He founded the German Institute for Psychiatric Research in Munich.
Sources
- BIAPSY, Biographical Archive of Psychiatry, Kraepelin, EmilArchive or museum. Institutional biography inspected.
- National Library of Medicine PMC, article on Emil Kraepelin (PMC2927892)Publisher. Text passages inspected.
- Wikipedia, Emil KraepelinReference work. Reference article inspected.