macroptic hallucination

macroptic hallucination:    The term macroptic hallucination is indebted to the Greek words makros (large) and opsis (seeing). It refers to a " visual hallucination in which the object or scene in question is perceived as disproportionally large in comparison with the objects seen in regular sense perception. A variant of the macroptic hallucination depicting dis-proportionally large human figures is known as a " gulliverian hallucination. Macroptic hallucinations may present as an isolated symptom, as part of an " aura or as part of a cluster of symptoms called the " Alice in Wonderland syndrome. Eti-ologically, they are associated with such varied conditions as "delirium, "delirium tremens, alcohol withdrawal, toxoplasmosis and typhoid infections, basilar migraine, mesencephalic lesions, " Charles Bonnet syndrome, and intoxication with " hallucinogens such as LSD and mescaline. The term macroptic hallucination is used in opposition to "microptic hallucination. It should not be confused with "macropsia.

   References

   Ey, H. (2004). Traité des hallucinations. Tome 1. Paris: Claude Tchou pour la Bibliothèque des Introuvables.

   Jaspers, K. (1963). Gesammelte Schriften zur Psychopathologie. Berlin: Springer-Verlag.

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microptic hallucination — Also known as microscopic hallucination and diminutive visual hallucination. The term microptic hallucination is indebted to the Greek words mikros (small) and opsis (seeing). It refers to a type of *visual hallucination in which the… … Dictionary of Hallucinations
gulliverian hallucination — Also known as brobdingnagian hallucination. Both terms denote a *macroptic hallucination depicting one or more disproportionally large human figures, either in isolation or embedded in an environment of regular proportions. The gulliverian… … Dictionary of Hallucinations
visual hallucination — Also referred to as vision. Both terms are indebted to the Latin noun visio, which means sight. They are used to denote a hallucination of sight. Historically, visual hallucinations have been divided into a multitude of types. Using their… … Dictionary of Hallucinations
macropsia — Also known as macropsy, macroptic vision, megalopsia, and megalopia. The term macropsia comes from the Greek words makros (large) and opsis (seeing). It refers to a visual distortion in which objects and stimuli are perceived as… … Dictionary of Hallucinations
morphopsia — The term morphopsia comes from the Greek words morphè (form) and opsis (seeing). It is used in a restricted sense to denote a multicoloured *complex visual hallucination with *microptic or * macroptic aspects. Pathophysiologically, this type… … Dictionary of Hallucinations

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