title: REM sleep, naps, and depression.
abstract: Continued interest in rapid eye movement (REM) sleep abnormalities in depression stimulated comparative studies on daytime naps versus nighttime sleep. In a group of 15 depressed patients, REM latencies in morning and afternoon naps were similar to the shortened REM onset at night. Although REM latency did not vary across the three times, the propensity for REM sleep appeared to be greater in the morning nap than in the afternoon nap and the early portion of nocturnal sleep. Finally, the data suggest that responders to tricyclic treatment tend to be poor sleepers during daytime naps.
mesh_terms: D000328:Adult; D000639:Amitriptyline / Q000627:therapeutic use; D002940:Circadian Rhythm; D003866:Depressive Disorder / Q000188:drug therapy / Q000503:physiopathology*; D005260:Female; D006801:Humans; D008297:Male; D009661:Nortriptyline / Q000627:therapeutic use; D012890:Sleep; D012895:Sleep, REM; D013997:Time Factors
chemical_list: D000639:Amitriptyline; D009661:Nortriptyline