hallucination

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Related to hallucinosis: Organic Hallucinosis
See: figment, insanity, phantom

HALLUCINATION, med. jur. It is a species of mania, by which "an idea reproduced by the memory is associated and embodied by the imagination." This state of mind is sometimes called delusion or waking dreams.
     2. An attempt has been made to distinguish hallucinations from illusions; the former are said to be dependent on the state of the intellectual organs and, the latter, on that of those of sense. Ray, Med. Jur. Sec. 99; 1 Beck, med. Jur. 538, note. An instance is given of a temporary hallucination in the celebrated Ben Johnson, the poet. He told a friend of his that he had spent many a night in looking at his great toe, about which he had seen Turks and Tartars, Romans and Carthagenians, fight, in his imagination. 1 Coll. on Lun. 34. If, instead of being temporary, this affection of his mind had been permanent, he would doubtless have been considered insane. See, on the subject of spectral illusions, Hibbert, Alderson and Farrar's Essays; Scott on Demonology, &c.; Bostock's Physiology, vol. 3, p. 91, 161; 1 Esquirol, Maladies Mentales, 159.

References in periodicals archive ?
Peduncular hallucinosis (PH) is characterized by complex visual hallucinations (CVH); the images are detailed, colored, and animated.
Parkinson's disease patients are currently treated with dopamine replacement therapies and the use of these agents frequently results in a range of drug-induced side effects, including neuropsychiatric abnormalities such as hallucinosis and psychosis as well as uncontrollable and excessive movements of the limbs referred to as dyskinesias.
Abstract: Peduncular hallucinosis (PH) is a rare form of visual hallucination characterized by vivid, nonstereotypical visual images of people, animals, and plants of brief duration that are nonthreatening to the patient.
Antipsychotics often are used incorrectly in this population and "should be reserved for patients with a huge amount of agitation accompanied by hallucinosis," he said, noting that there are many other medications for agitation, anxiety, and delirium that can be tried before using an antipsychotic.