A term used to denote a*sensory deception that does not fulfil all the formal criteria of a hallucination proper (such as a *daydream, a * hypnagogic hallucination or a *physiological illusion). The term false hallucination was used by the French psychiatrist Claude-François Michéa (1815-1882) in opposition to the term * true hallucination, which he used to designate a hallucination that does fulfil all the necessary formal criteria.
References
Michéa, C.-F. (1871). Du délire des sensations. Paris: Labe.
Dictionary of Hallucinations. J.D. Blom. 2010.