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Posttraumatic stress disorder

M J Friedman1

  • 1National Center for Post-Traumatic Stress Disorder, Dartmouth Medical School, Hanover, N.H., USA.

The Journal of Clinical Psychiatry
|January 1, 1997
PubMed
Summary
This summary is machine-generated.

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This review synthesizes data on posttraumatic stress disorder (PTSD), highlighting its complex neurobiology, learning-based behavioral treatments, and potential for new therapies. Understanding PTSD involves multiple systems, impacting patient appraisal and leading to comorbid conditions.

Area of Science:

  • Neuroscience
  • Psychiatry
  • Psychology

Background:

  • Posttraumatic stress disorder (PTSD) is a complex condition with multifaceted etiology, psychobiology, and epidemiology.
  • Multiple neurobiological systems, including catecholamine and HPA axis, are implicated in PTSD.
  • Learning and memory models offer insights into PTSD symptoms and behavioral treatments.

Purpose of the Study:

  • To review and synthesize current data on posttraumatic stress disorder (PTSD).
  • To explore the neurobiological underpinnings, psychological mechanisms, and treatment approaches for PTSD.
  • To discuss diagnostic complexities, including comorbidity and cross-cultural factors, and future research directions.

Main Methods:

  • Literature review and conceptual synthesis of existing research on PTSD.

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  • Analysis of neurobiological systems, learning/memory models, and allostasis/homeostasis concepts.
  • Examination of diagnostic challenges, comorbidity, and potential for new therapeutic strategies.

    • Main Results:

    • At least four neurobiological systems are involved in PTSD, with others possibly implicated.
    • PTSD symptoms, such as avoidance and hyperarousal, can be explained by learning and memory principles.
    • Complex PTSD and cross-cultural variations present diagnostic challenges, while comorbidities may indicate subtypes.

    Conclusions:

    • A comprehensive understanding of PTSD requires integrating neurobiological, psychological, and learning models.
    • Effective management of PTSD necessitates collaboration between primary care and specialists due to increased medical vulnerability.
    • Emerging approaches in prevention, psychotherapy, pharmacotherapy, and research offer hope for improved PTSD patient outcomes.