- stable hallucination
- A term coined in or shortly before 1866 by the German psychiatrist Karl Ludwig Kahlbaum (1828-1899). Kahlbaum uses the term to denote a hallucination which displays a minimum of variation over time. He conceptualizes this type of hallucination as a variant of the * centripetal type of hallucinations (i.e. *phantoms in Kahlbaum's jargon). Today the term stable hallucination is used chiefly to denote a * stereotyped hallucination which arises in the context of a migrainous or epileptic *aura or in the context of * hallucinatory epilepsy. In the latter case, hallucinations typically take the form of a * complex or * compound hallucination lasting some 10-30 s, recurring at indefinite intervals, with each episode constituting a replica of the previous one.ReferencesBlom, J.D., Sommer, I.E.C. (2009). Auditory hallucinations. Cognitive and Behavioral Neurology (in press).Kahlbaum, K. (1866). Die Sinnesdelirien. Allgemeine Zeitschrift für Psychiatrie und psychischgerichtliche Medizin, 23, 56-78.Walter, H., Podreka, I., Steiner, M., Suess, E., Benda, N., Hajji, M., Lesch, O.M., Musalek, M., Passveg, V. (1990). A contribution to classification of hallucinations. Psy-chopathology, 23, 97-105.
Dictionary of Hallucinations. J.D. Blom. 2010.