- A dictionary of medical eponyms

Rorschach test

Related people

A psychological projection test in which inkblots are used clinically for diagnosing psychopathology. A person is presented, in a certain sequence, 10 plates with specially designed inkblots in grey black and pastel colours, and is asked to tell what they depict or what they remind of. The answers are supposed to give a picture of major traits of personality structure and psychopathology. Some consider it to give an X-ray picture of the human mind, to others it is hardly more scientific than astrology and other forms of occultism.

Already in 1911 Rorschach had begun experimenting with the interpretation of ink blots. However, he was not the first one who did this; among his famous forerunners are Leonardo da Vinci (1452-1519) and Andreas Justinus Christian Kerner (1786-1862).


  • J. Kerner:
    Kleksographien. 1857. A book of inkblot-inspired poems.
  • H. Rorschach:
    Psychodiagnostik. Methodik und Ergebnisse eines Wahrnehmungsdiagnostischen Experiments (Deutenlassen von Zufallsformen).
    Bern, Ernst Bircher, 1921.

What is an eponym?

An eponym is a word derived from the name of a person, whether real or fictional. A medical eponym is thus any word related to medicine, whose name is derived from a person.

What is Whonamedit?

Whonamedit.com is a biographical dictionary of medical eponyms. It is our ambition to present a complete survey of all medical phenomena named for a person, with a biography of that person.


Whonamedit? does not give medical advice.
This survey of medical eponyms and the persons behind them is meant as a general interest site only. No information found here must under any circumstances be used for medical purposes, diagnostically, therapeutically or otherwise. If you, or anybody close to you, is affected, or believe to be affected, by any condition mentioned here: see a doctor.