A term used by the Swiss psychiatrist, hypnotist, and entomologist August Forel (1848-1931) as a synonym for " reflex hallucination. As Forel wrote in 1903, "By reflex false perception we mean false perceptions of one sense which are called forth by normal perceptions of another. Thus one of my patients always felt blows from a stick when some one rattled the key in the door." Although closely related in a phenomenological sense, the reflex false perception should not be confused with " synaesthesia.
References
Forel, A. (1907). The hygiene of nerves and mind in health and disease. Translated by Aikins, H.A. New York, NY: The Classics of Psychiatry & Behavioral Sciences Library.
Dictionary of Hallucinations. J.D. Blom. 2010.