Background: Narcolepsy type 1 (NT1. narcolepsy with cataplexy) is a disabling neurological disorder caused by loss of excitatory orexin neurons from the hypothalamus and is characterized by decreased motivation. sleep-wake fragmentation. intrusion of rapid-eye-movement sleep (REMS) during wake. https://www.oxfordofbluebell.com/product-category/word-art/