This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Psychiatry
[{'content': 'Narcolepsy is due to the abnormality in \nSelect and explain. \nA. Hypothalamus, B. Neocoex, C. Cerebellum, D. Medulla oblongata', 'role': 'user'}, {'content': "Answer: A \nExplanation: Narcolepsy: Types central nervous system dysfunction of sleep mechanisms, hypocretin dysfunction, and deficit With Cataplexy symptom tetrad (1) excessive daytime sleepiness (2) cataplexy** (3) sleep paralysis (4) hypnagogic hallucinations **Temporary sudden loss of muscle tone, causing weakness and immobilization onset second decade of life. Without Cataplexy trigger for cataplexy: Strong emotions(laughter and anger) Due To Medical Condition Nocturnal sleep-fragmented, considerable sleep disturbance is present (tumors or sarcoidosis of the hypothalamus, multiple sclerosis plaques affecting the hypothalamus, paraneoplastic syndromes) Treatment: scheduled naps, lifestyle adjustment, modafinil, SSRI Reference: P 2161 chap. 20 Sleep Disorders(Kaplan & Sadock's Comprehensive Textbook of Psychiatry, 9th Edition)", 'role': 'assistant'}]