Narcolepsy is due to abnormality in -
Ans. is 'a' i.e., Hypothalamus o Narcolepsy is unique in that those who suffer from it typically fall almost instantaneously into REM sleep,o It is thought that narcolepsy is caused by a malfunctioning of the hypothalamus in brain.
Hypothalamus
Neocortex
Cerebellum
Medullaoblongata
Sleep-Wake Disorders