The site of lesion in Korsakoff's psychosis is :
Wernicke's encephalopathy : Thalamus, mammillary bodies, midline cerebellum, periaqueductal gray matter of midbrain, and peripheral nerves.
Korsakoff's syndrome : Atrophy of Mammillary body, medial thalamic nuclei, and hippocampus.
Frontal lobe
Corpus striatum
Mammilary body
Cingulate gyms