Emil Kraepelin (1856-1926) is one of the psychiatrists who have shaped world psychiatry. His views have had more lasting influence on psychiatry than Freud, yet he is little known by the public, explains Peter Carpenter.
Kraepelin arguably is the most significant figure in the development of the ideas of British psychiatry. The impending centenary of his death has prompted a two-day conference at the Royal Society of Medicine in London: After Kraepelin: Ambitions, Images, Practices and the History of Psychiatry 1926-2026 on 6-7 March.
His comparative obscurity is probably because he was a German by birth, spent his entire life within Germany and wrote in German. He left others to translate. But he wrote at a time when British psychiatry was looking for evidence to develop the profession. His great work Compendium der Psychiatrie: Zum Gebrauche für Studirende und Aerzte (Compendium of Psychiatry: For the Use of Students and Physicians) was first printed in 1883, and he wrote nine editions of the work during his life.
He first stressed the biological basis of mental illness and the need to collect observations over time. He started the advance from concepts of mental illness from classifications that still depended on 18th century and earlier ideas that named mental conditions by how they presented in the here and now. A patient, therefore, could have series of names given to their condition over a period of ill-health. As part of this, in his 1893 edition he separated major affective disorders – mania and melancholia – from dementia praecox (later called schizophrenia) – rather than grouping them on whether they were violent or inactive when seen.
With his detailed case records and search for physical causes, Kraepelin turned psychiatry and the treatment of mental illness from a philosophical argument into a science and psychiatrists from quacks to doctors. His ideas were practically useful to psychiatrists dealing with major mental illness, and whilst Freud later held the public’s imagination, Kraepelin (and his views of the biological basis of major mental illness) continued and determined much of modern psychiatric thinking and treatment.
Kraepelin actively rejected the ideas of Freud on childhood experiences being a cause of illness. He studied speech in dreams as a means of understanding psychotic speech. He campaigned for better treatment of the mentally ill but also supported the ideas of eugenicists and taught that homosexuality was a vice.
The conference After Kraepelin: Ambitions, images, Practices and the History of Psychiatry 1926-2026 has a programme that covers both his history and his ideas and how biological research and social and political changes have altered how his ideas are now seen. It will take place on 6-7 March and is open to all. Further details: https://www.rsm.ac.uk/events/psychiatry/2024-25/pyt02/.
Peter Carpenter is a retired psychiatrist, now co-chair of the history of psychiatry group in the Royal College of Psychiatrists and a fellow of the RSM.