- Bleuler's definition of illusions
- In his classic textbook of psychiatry, the Swiss psychiatrist Paul Eugen Bleuler (1857-1939) defines *illusions as follows. "Illusions are morbidly altered genuine perceptions: The striking of the hour is perceived as a term of abuse, or as a promise; the clutched hand is rejected as a cold 'death hand'; people are seen as standing on their heads, instead of the white colour of a face a black one is seen, instead of a nurse a waitress."ReferencesBleuler, E. (1923). Lehrbuch der Psychiatrie. Vierte Auflage. Berlin: Verlag von Julius Springer.
Dictionary of Hallucinations. J.D. Blom. 2010.