Visual hallucinations and the Charles Bonnet syndrome

被引:56
|
作者
Ffytche D.H. [1 ]
机构
[1] Centre for Neuroimaging Sciences, Institute of Psychiatry, London SE5 8AF, De Crespigny Park, Denmark Hill
基金
英国惠康基金;
关键词
Visual Cortex; Visual Hallucination; Lewy Body Dementia; Charles Bonnet Syndrome; Nonschizophrenic Psychotic Disorder;
D O I
10.1007/s11920-005-0050-3
中图分类号
学科分类号
摘要
After dividing clinicians for almost 70 years, Charles Bonnet syndrome has reached an impasse. Defined by a neurologist in the 1930s, the syndrome was intended to eponymize the association of visual hallucinations with age, but evolved into one describing their association with eye disease or, more recently, an etiologically neutral phenomenologic description. Each tradition has its merits but none has defined a specific clinical entity or accounted for visual hallucinations across the spectrum of associated clinical conditions. Recent insights into the neurobiology of vision have shed new light on the problem. Viewed from a neuro-phenomenologic perspective, clinical evidence reveals two distinct hallucination syndromes: one directly related to visual system pathology, the other to pathology in the brainstem or ascending neurotransmitter pathways. The implication is of two independent but interacting pathophysiologic mechanisms and of a need to reassess the classification and management of this common psychopathologic symptom. Copyright © 2005 by Current Science Inc.
引用
收藏
页码:168 / 179
页数:11
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