- Horowitz's definition of hallucinations
- In 1975 the American psychiatrist Mardi Jon Horowitz (b. 1934) defined hallucinations as follows: "Hallucinations are images based on immediately internal sources of information, which are appraised as if they came from immediately external sources of information."ReferencesHorowitz, M.J. (1975). Hallucinations: An information-processing approach.In: Hallucinations. Behavior, experience, and theory.Edited by Siegel, R.K., West, L.J. New York, NY: Grune & Stratton.
Dictionary of Hallucinations. J.D. Blom. 2010.