BRAIN and NERVE Shinkei Kenkyu no Shinpo Volume 70, Issue 12 (December 2018)

I Am Seeing a Human!: The Perception of an External Visual Stimulus Where None Exists Mari Miyata 1 , Shingo Kakeda 1 1Department of Radiology, School of Medicine, University of Occupational and Environmental Health Keyword: 脳画像 , 視覚情報処理 , 幻視 , レヴィ小体型認知症 , パーキンソン病 , neuroimaging , visual information processing , visual hallucination , dementia with Lewy bodies , Parkinson's disease pp.1359-1367
Published Date 2018/12/1
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A visual hallucination (VH) is “the perception of an external visual stimulus where none exists”. It frequently occurs in Lewy body disease (LBD): Parkinson's disease and dementia with Lewy bodies. Although the exact pathogenesis of VH in patients with LBD is not clearly understood, many neuroimaging studies (structure MRI: brain volume, functional MRI, positron emission tomography, and single photon emission computerized tomography) have reported reduced gray matter volume, altered activation, and reduced metabolism in the dorsal and ventral visual pathways. The results obtained from the neuroimaging studies suggest the presence of aberrant visual information processing.

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BRAIN and NERVE-神経研究の進歩
70巻12号 (2018年12月)
電子版ISSN 1344-8129 印刷版ISSN 1881-6096 医学書院