Also known in the literature in the (misspelled) variants brobdignagian hallucination and brodnigagian hallucination. The term brobdingna-gian hallucination is indebted to Brobdingnag,the name of a fictitious country inhabited by huge people, featuring in the novel Gulliver's Travels by the Irish poet and author Jonathan Swift (1667-1745). It is used as a synonym for the term *gulliverian hallucination, i.e. a *visual hallucination in which disproportionally large human figures are perceived, either in isolation, or against a background of regular proportions. For a more detailed account of this type of hallucination, see the entry Gulliverian hallucination.
References
Ey, H. (2004). Traité des hallucinations. Tome 1.
Paris: Claude Tchou pour la Bibliothèque des Introuvables. Swift, J. (1726). Gulliver's travels. London: B. Motte.
Dictionary of Hallucinations. J.D. Blom. 2010.