This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Psychiatry
[{'content': 'NOT seen in Narcolepsy \nSelect and explain. \nA. Sleep paralysis, B. Ataxia, C. Catalepsy, D. Abnormal REM sleep', 'role': 'user'}, {'content': 'Answer: C \nExplanation: (C) Catalepsy # CATAPLEXY is present not catalepsy.> The classic symptoms of the disorder, often referred to as the "tetrad of narcolepsy," are cataplexy, sleep paralysis, hypnagogic hallucinations, and excessive daytime sleepiness.> Night-time sleep may be fragmented with frequent awakenings.> A second prominent symptom of narcolepsy is abnormal REM sleep.> Narcoleptics are unique in that they enter into the REM phase of sleep in the beginnings of sleep, even when sleeping during the day.', 'role': 'assistant'}]