"Visual hallucinations are relatively uncommon, and can be due to a variety of 'organic' brain diseases, affecting a variety of regions of the brain. The use of the term organic here is by convention, and should not be taken to imply absence of brain dysfunction in psychiatric illness."
"Of interest, the patient's insight and response to these hallucinations is variable. In some cases, such as Lilliputian hallucinations (miniature people in lines or groups often performing strange actions), the hallucinations are not distressing, but rather elicit curiosity or wonder. In other settings, for example those due to psychiatric disturbance, delirium or intoxication/withdrawal are often frightening."
"Lewy body dementia: >20% experience visual hallucinations"
"hallucinogens: mescaline, psilocybin, lysergic acid diethylamide (LSD), phencyclidine (PCP), ecstasy (MDMA), atropine, dopamine agonists"
"typically due to irritation or stimulation of the primary visual cortex (e.g. tumours, epilepsy)"
"occipital lesions (e.g. tumours, vascular malformations, strokes, epileptogenic foci)"
"thalamic lesions (e.g. top of the basilar syndrome)"
"brief, uniform and stereotyped"
"Of interest, the patient's insight and response to these hallucinations is variable. In some cases, such as Lilliputian hallucinations (miniature people in lines or groups often performing strange actions), the hallucinations are not distressing, but rather elicit curiosity or wonder. In other settings, for example those due to psychiatric disturbance, delirium or intoxication/withdrawal are often frightening."
"hallucinogens: mescaline, psilocybin, lysergic acid diethylamide (LSD), phencyclidine (PCP), ecstasy (MDMA), atropine, dopamine agonists"