publication . Article . 2012

Pareidolias: complex visual illusions in dementia with Lewy bodies

Uchiyama, Makoto; Nishio, Yoshiyuki; Yokoi, Kayoko; Hirayama, Kazumi; Imamura, Toru; Shimomura, Tatsuo; Mori, Etsuro;
Open Access
  • Published: 01 May 2012 Journal: Brain, volume 135, pages 2,458-2,469 (issn: 0006-8950, eissn: 1460-2156, Copyright policy)
  • Publisher: Oxford University Press (OUP)
Abstract
Patients rarely experience visual hallucinations while being observed by clinicians. Therefore, instruments to detect visual hallucinations directly from patients are needed. Pareidolias, which are complex visual illusions involving ambiguous forms that are perceived as meaningful objects, are analogous to visual hallucinations and have the potential to be a surrogate indicator of visual hallucinations. In this study, we explored the clinical utility of a newly developed instrument for evoking pareidolic illusions, the Pareidolia test, in patients with dementia with Lewy bodies—one of the most common causes of visual hallucinations in the elderly. Thirty-four pa...
Subjects
Medical Subject Headings: genetic structures
free text keywords: Clinical Neurology, Disease, Audiology, medicine.medical_specialty, medicine, Neuroscience, Arousal, Visual Hallucination, Dementia with Lewy bodies, medicine.disease, Psychiatry, Dementia, Illusion, media_common.quotation_subject, media_common, Pareidolia, business.industry, business, Optical illusion, Original Articles, acetylcholine, visual hallucinations, visual illusions
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publication . Article . 2012

Pareidolias: complex visual illusions in dementia with Lewy bodies

Uchiyama, Makoto; Nishio, Yoshiyuki; Yokoi, Kayoko; Hirayama, Kazumi; Imamura, Toru; Shimomura, Tatsuo; Mori, Etsuro;