This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Sleep-Wake Disorders, Subject name: Psychiatry
All of the following are associated increased REM latency, except - 
Select and explain. 
A. First night effect, B. SSRIs, C. Narcolepsy, D. Restless leg syndrome
C: Narcolepsy
Answer: C: Narcolepsy 
Explanation: Ans. is 'c' i.e. narcolepsy Increased REM latencyReduced REM latencyo Post traumatic stress disordero Narcolepsyo Restless leg syndromeo Depression, Bipolar disordero First night effecto Cushing syndromeo SSRIso Addison's diseaseo TCAso Untreated sleep apneao Ethanolo Withdrawal of REM suppressing drugso Lithiumo OCD o Schizophrenia