This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Treatment in psychiatry, Subject name: Anatomy
[{'content': 'which of the following is a side effect of vagal nerve stimulation \nSelect and explain. \nA. paradoxical suicide, B. voice alteration, C. aaythmia, D. epilepsy', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Vagus nerve stimulation * Electrical stimulation of left vagus nerve * Stimulation of raphe nucleus and locus cereleus * Release of norepinephrine and serotonin * Side effects * Voice alteration Ref. kaplon and sadock, synopsis of psychiatry, 11 th edition, pg no. 1065', 'role': 'assistant'}]