Korsakoff's syndrome patients sometimes experience both anterograde and retrograde amnesia.This syndrome is caused by

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Korsakoff's syndrome is typically caused by a thiamine (vitamin B1) deficiency that occurs in chronic alcoholics with poor diets. The deficiency results in damage to the brain's thalamus and hypothalamus, leading to memory impairment and other cognitive deficits. Patients with Korsakoff's syndrome may experience both anterograde amnesia (difficulty forming new memories) and retrograde amnesia (difficulty remembering past events).

Korsakoff's Syndrome Patients Sometimes Experience Both Anterograde and Retrograde Amnesia