Cited by 634Sleep and related disordersPosttraumatic Stress Disorder ResearchSleep and Wakefulness Research

Sleep disturbances as the hallmark of PTSD: where are we now?

Open access
Germain, Anne·2013·American Journal of Psychiatry

Abstract

The hypothesis that rapid eye movement (REM) sleep disturbances are the hallmark of posttraumatic stress disorder (PTSD), proposed by Ross and colleagues in 1989, has stimulated a wealth of clinical, preclinical, and animal studies on the role of sleep in the pathophysiology of PTSD. The present review revisits this influential hypothesis in light of clinical and experimental findings that have since accumulated. Polysomnographic studies conducted in adults with PTSD have yielded mixed findings regarding REM sleep disturbances, and they generally suggest modest and nonspecific sleep disruptions. Prospective and treatment studies have provided more robust evidence for the relationship between sleep disturbances and psychiatric outcomes and symptoms. Experimental animal and human studies that have probed the relationship between REM sleep and fear responses, as well as studies focused more broadly on sleep-dependent affective and memory processes, also provide strong support for the hypothesis that sleep plays an important role in PTSD-relevant processes. Overall, the literature suggests that disturbed REM or non-REM sleep can contribute to maladaptive stress and trauma responses and may constitute a modifiable risk factor for poor psychiatric outcomes. Clinicians need to consider that the chronic sleep disruption associated with nightmares may affect the efficacy of first-line PTSD treatments, but targeted sleep treatments may accelerate recovery from PTSD. The field is ripe for prospective and longitudinal studies in high-risk groups to clarify how changes in sleep physiology and neurobiology contribute to increased risk of poor psychiatric outcomes.

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Crossref · 10.1176/appi.ajp.2012.12040432

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  • Sleep disturbances and recurrent nightmares are recognized as the hallmark of PTSD.

    “PTSD is characterized by hyperreactivity to emotional stimuli and an inability to extinguish traumatic memories (American Psychiatric Association, 2013) and sleep disturbances and recurrent nightmares are recognized as the hallmark of PTSD (Levin et al., 2010; Germain, 2013).”

    From The Functional Role of Dreaming in Emotional Processes (2019) · cites this paper as Germain, 2013

    The paper describes nightmares as a unique, core symptom of PTSD and discusses an influential hypothesis that sleep disturbances, especially REM disturbances and nightmares, are its hallmark. But the Abstract presents this as a hypothesis under review, not an established characterization, and reports mixed findings for REM sleep disturbances. The citing sentence overstates that certainty. (LLM, conf=0.88)

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  • Sleep disruption may enhance maladaptive stress regulation.

    “Stress, thus, influences sleep physiology and dream patterns and may cause both immediate and long-lasting sleep disruption (364–366), which may, in turn, enhance maladaptive stress regulation (367).”
  • PTSD patients report dreams with vivid images and negative emotions associated with the traumatic events.

    “Specifically, PTSD patients report dreams with vivid images and negative emotions associated with the traumatic events (Germain, 2013).”

    From The Functional Role of Dreaming in Emotional Processes (2019) · cites this paper as Germain, 2013

  • These sleep abnormalities are consistent with an underlying hyperarousal in PTSD that lightens sleep, prevents deeper, more restorative sleep stages, and alters the distinct physiology of REM sleep.

    “These abnormalities are consistent with an underlying hyperarousal in PTSD that lightens sleep, prevents deeper, more restorative sleep stages, and alters the distinct physiology of REM sleep [20, 29, 36, 134, 143].”
  • Both objective and subjective sleep disturbances represent core features of PTSD.

    “Therefore, both objective and subjective sleep disturbances represent core features of PTSD [36, 134, 136].”

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Research works printed but not linked: 2

  1. [2]Hanlon J Kellerman H The nightmare and intrapsychic conflict The Nightmare: Psychological and Biological Foundations New York Columbia University Press 1987 16 32
  2. [3]Kavaler S Kellerman H Nightmares and object relation theory The Nightmare: Psychological and Biological Foundations New York Columbia University Press 1987 33 57

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Authors
Germain, A.
Affiliations
University of Pittsburgh (US)
Corresponding author
Germain, Anne
Venue
American Journal of Psychiatry
Published
2013-04
Volume
170
Issue
4
Pages
372-382
ISSN
  • 0002-953X (ISSN-L)
  • 1535-7228
OpenAlex
W2102756647
Cited by
634
References
91
Citations by year
2026: 71 · 2025: 42 · 2024: 34 · 2023: 56 · 2022: 50 · 2021: 60 · 2020: 48 · 2019: 51 · 2018: 40 · 2017: 50 · 2016: 40 · 2015: 39 · 2014: 34 · 2013: 16 · 2012: 1
FWCI
38.55
Type
journal article
Language
en
Open access
Locations
  • American Journal of Psychiatry (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Institute of Mental Health (R21MH083035)
Topics
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and related disorders
  • Social Sciences › Psychology › Clinical Psychology › Posttraumatic Stress Disorder Research
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Sleep and Wakefulness Research
Keywords
post-traumatic stress disorder, sleep disorders, PTSD pathophysiology, nightmares, fear response, sleep-dependent memory consolidation, sleep interventions, polysomnography findings
MeSH terms
Animals, Dreams, Emotions, Humans, Sleep Initiation and Maintenance Disorders, Memory, Stress Disorders, Post-Traumatic, Polysomnography, REM Sleep Behavior Disorder, Resilience, Psychological, Brain Waves

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