Visual Hallucinations and Impaired Conscious Visual Perception in Parkinson Disease. (November 2020)

• Record Type: Journal Article
• Authors: Kurita, Akira; Koshikawa, Hiroaki; Akiba, Takeshi; Seki, Kanako; Ishikawa, Hiroaki; Suzuki, Megumi
• Is Part Of: Journal of geriatric psychiatry and neurology. Volume 33:Number 6(2020)
• Page Start: 377
• Page End: 385
• Publication Date: 2020-11
• Subjects: visual hallucinations -- conscious visual perception -- Parkinson disease; Geriatric neurology -- Periodicals; Geriatric neuropsychiatry -- Periodicals; Geriatric psychiatry -- Periodicals; Nervous system -- Diseases -- Periodicals; 618.97689
• DOI: 10.1177/0891988719892318
• Languages: English
• ISSNs: 0891-9887

Abstract

Visual hallucinations (VHs) are common in patients with Parkinson disease (PD), especially those with dementia, whereas auditory hallucinations are quite rare. Recent studies have revealed the involvement of several regions along the visual information-processing system that contribute to the pathophysiological mechanism of VHs: the eyes and retina, retinofugal projection, lateral geniculate nucleus, striate cortex, ventral pathways in the temporal cortices, and frontal and parietal cortices. In addition, the concurrent involvement of other systems in the brainstem and basal forebrain further modify VHs in PD. In this review, we discuss the pathophysiological association between the regional involvement of these areas and VHs.