Please use this identifier to cite or link to this item:
Title: An ambulatory PSG study of the posttraumatic nightmares of posttraumatic stress disorder
Austin Authors: Phelps, Andrea J;Kanaan, Richard A A ;Worsnop, Christopher;Redston, Suzy ;Ralph, Naomi;Forbes, David
Affiliation: Phoenix Australia Centre for Posttraumatic Mental Health, Department of Psychiatry, University of Melbourne, Melbourne, Victoria, Australia
Department of Respiratory and sleep Medicine, Austin Health, Heidelberg, Victoria, Australia
Austin Health and University of Melbourne, Heidelberg, Victoria, Australia
Psychological Trauma and Recovery Service, Heidelberg Repatriation Hospital, Melbourne, Victoria, Australia
Issue Date: 22-Nov-2017 2017-11-22
Publication information: Sleep 2017; online first: 22 November
Abstract: STUDY OBJECTIVES: This study used ambulatory polysomnography (PSG) to investigate posttraumatic nightmares of PTSD. The key research question was whether posttraumatic nightmares occur in both REM and non-REM sleep, and if so, whether nightmares in each sleep stage differed in content, phenomenology and heart rate response. Underlying sleep disorders were investigated in an exploratory way. METHODS: Thirty-five treatment-seeking veterans, current serving military members and emergency service personnel undertook full PSG using the Compumedics (Melbourne, Australia) SomtePSG V1 system, during an inpatient psychiatric admission. The PSG recording included an event button to be pressed when a nightmare occurred, allowing us to determine the stage of sleep, changes in heart rate and associated sleep events. The content and phenomenological features of participants' nightmares were recorded. RESULTS: Of the 35 participants, 29 reported a nightmare during their sleep study, but only 21 pressed the event button and could recall the content of one or more nightmare. This yielded sleep and nightmare data for 24 nightmares. Of the 24, 10 nightmares arose from REM sleep and 14 from non-REM (stages N1 and N2). Seven were accurate trauma replays and 17 were non-replay or a mixture of replay and non-replay. Most nightmares were associated with respiratory or leg movement events and increase in heart rate on awakening. CONCLUSIONS: Posttraumatic nightmares of PTSD occur in both REM and non-REM sleep and are commonly associated with other sleep disturbance. These findings have important treatment implications.
DOI: 10.1093/sleep/zsx188
ORCID: 0000-0003-0992-1917
PubMed URL:
Type: Journal Article
Subjects: PTSD
Posttraumatic nightmares
REM and non-REM sleep
ambulatory polysomnography
obstructive sleep apnoea
Appears in Collections:Journal articles

Show full item record

Page view(s)

checked on Dec 1, 2022

Google ScholarTM


Items in AHRO are protected by copyright, with all rights reserved, unless otherwise indicated.