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Related to hallucination: auditory hallucination, visual hallucination
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 ?
For example, somebody who envisions himself towards becoming a successful businessman, but has not started reading about management and business, while also saving the start-up capital is only having a hallucination about a future that he will never experience.
It found that avatar therapy was more effective at reducing hallucinations at 12-week follow-up, and had a large effect size.
Hallucinations may be caused by a range of neurological conditions, such as Parkinson's disease and dementia with Lewy bodies.
Auditory hallucination (AH) is a common symptom in patients with schizophrenia and its average prevalence is 60% (range 25-94%).
sup][21] The auditory hallucination rating scale [sup][22] was used to assess AVH with seven characteristics such as frequency, reality, loudness, number of voices, length, attention dedicated to the hallucinations, and hallucination-induced arousal.
In the extensively used Positive and Negative Syndrome Scale (PANSS), the hallucination item is one of seven in the positive subscale, which also includes delusions, conceptual disorganization, excitement, grandiosity, suspiciousness, and hostility.
Lee uses art to assimilate the diabolic in himself and, in so doing, makes his hallucinations universal.
B reports visual hallucinations, which prompts the ER physician to request a psychiatry consult.
Mohammed Jalal Al Raisi, Director of Communication and Community Service at the ADFCA, said that the inspectors conducted a comprehensive survey on the tea sales in Abu Dhabi, Al Ain and the Western Region retail outlets, pointing out that the physical examination showed lack of any impurities or hallucination pills in different tested teabags.
The Graff Hallucination is a sculptural masterpiece; a celebration of the miracle of coloured diamonds," he said.
Nearly one in 10 people suffer from tinnitus, which is technically an auditory hallucination, in which tones or buzzing noises are heard following hearing loss.
2005) found that private self-focusing was also a good predictor of hallucination proneness.