Ramblings & ephemera

Strange mental conditions

From A Collection of Unusual Neurological States:

Kluver-Bucy Syndrome: Damage to the front of the temporal lobe and the amygdala just below it can result in the strange condition called Kluver-Bucy Syndrome. Classically, the person will try to put anything to hand into their mouths and typically attempt to have sexual intercourse with it. A classic example is of the unfortunate chap arrested whilst attempting to have sex with the pavement. …

Capgras’ Syndrome: … The Capgras’ patient will typically identify people close to them as being imposters – identical in every possible way, but identical replicas. Classically, the patient will accept living with these imposters but will secretly “know” that they are not the people they claim to be. …

Cotard’s Syndrome: … this syndrome is characterized by the patient believing that he is dead, a walking corpse. This “delusion” is usually expanded to the degree that the patient might claim that he can smell his own rotting flesh and feel worms crawling through his skin (a recurring experience of people chronically deprived of sleep or suffering amphetamine/cocaine psychosis). …

Fregoli Syndrome: This is an extraordinary experience where the person misidentifies another person as someone who clearly he is not. Indeed, he may begin to see the same person everywhere he looks …

Alien Hand Syndrome: Probably a version of “left hemi-neglect”, brain damage in the right place can disconnect the left hand (controlled by the right, unconscious cerebral hemisphere) leaving the left hand without conscious control and the person at the mercy of the unconscious whims of the right hemisphere.

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