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Related to visual hallucination: schizophrenia
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.

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A total of 63% of the DLB group had visual hallucinations, compared with 8% of the AD group.
Intoxication is characterized by the presence of visual hallucinations, tremors, nausea, and vomiting (Frison et al.
He was having visual hallucinations involving people and was talking to them.
A substantial number of older adults without mental disorders but with age-related visual impairments experience formed visual hallucinations that are due to a condition known as Charles Bonnet syndrome (CBS; Teunisse et al.
Although she did not return to her baseline by this point, her myoclonus, rigidity and visual hallucinations had resolved.
VR assesses visual hallucinations and synesthesia (the crossover of senses; e.
In her memoirs, George Sand recalls various times when the composer experienced visual hallucinations, including a trip to a monastery that was 'full of terrors and ghosts for him'.
Discontinue reading, he cautioned, "if any of the following occur: itching, aching, dizziness, ringing in ears, vomiting, giddiness, auditory or visual hallucinations, loss of balance, slurred speech, blindness, drowsiness, insomnia, profuse sweating, shivering, or heart palpitations.
The drug has psychedelic effects that can include the enhancement of colours and visual hallucinations.
The things that were common with all of them were extreme agitation, both auditory and visual hallucinations and paranoid delusions.
Visual hallucinations are associated with a more severe cognitive impairment.
The outcome would be visual hallucinations of a small humanoid with a large head, big eyes and a small body.

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