This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: vitamins, Subject name: Biochemistry
[{'content': 'Not seen in the thiamine deficiency \nSelect and explain. \nA. Cerebellar dysfunction, B. Amnesia, C. Confabulation, D. Nystagmus', 'role': 'user'}, {'content': 'Answer: A \nExplanation: cerebral beriberi is mostly seen in chronic alcoholics. The body demands of thiamine increase in alcoholism. Insufficient intake or impaired intestinal absorption of thiamine will lead to this syndrome. characterized by loss of memory(amnesia), apathy and a rhythmical to and fro motion of the eye balls (nystagmus), Confabulatory psychosis ref satyanarayana 4th ed page 137', 'role': 'assistant'}]