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In page Charcot–Wilbrand syndrome:

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In 1887 Hermann Wilbrand was studying an elderly female subject with bilateral posterior cerebral artery thrombosis.[1] This subject displayed a complete inability to dream coupled with an inability to recognize familiar places, a condition known more recently as topographic agnosia.[2] Additionally a condition known as prosopagnosia, or the inability to recognize familiar faces was also noted in the patient. Wilbrand's contribution revolves around the complete inability to produce dreams with the presence of agnosias as possible side conditions.[citation needed]