Poststroke Illusions and Hallucinations

摘要: Illusions are misperceptions or perceptual distortions of an existing external stimulus, and hallucination is a perception in the absence stimulus. Both phenomena can occur course large number cerebrovascular pathological processes, they may develop either isolated combined modalities. Isolated auditory, olfactory, tactile hallucinations rare event have been associated with stroke subtypes. Charles-Bonnet syndrome characterized by occurrence visual that formed, complex, persistent repetitive, stereotyped; fully partially retained insight; absent delusions. Peduncular hallucinosis following rostral brainstem lesion seeing animals bizarre appearance, transformation into human figures, mobile multiple-colored images, visuotactile associations. combination auditory multi-infarct dementia lesions involving occipitotemporal regions occasionally occur. In most patients, were observed mostly after ischemic hemorrhagic posterior parts cerebral hemisphere more frequently right than left. Patients syncope transient hypoxia experience such as gray haze, colored patches, bright lights consisting rushing roaring noises, screaming, voices.