<prompt> Lesion in Wernickes encephalopathy occurs in -Mamillary bodyCerebellumMotor cortexSubstantia nigra  <response>: In thiamine deficiency, hemorrhages into the mamillary bodies cause Wernicke-korsakof syndrome.Other regions of CNS involved in thiamine deficiency are periventricular regions of the thalamus, the floor of the fourth ventricle and the anterior region of the cerebellum. 