Post-traumatic stress disorder is a psychiatric illness that can occur in anyone who has experienced a life-threatening or violent event. The trauma can be due to war, terrorism, torture, natural disasters, violence, or rape. In PTSD the brain areas that are likely to be affected are the hippocampus (memory), amygdala (fear association), the prefrontal cortex (cognitive processing), and the ascending reticular activating system (arousal). The chemical of interest is norepinephrine, which is released during a stressful event and is part of the fight-or-flight response meant to mobilize the body to action.The objective of this title is to outline the neurobiology of post-traumatic stress disorder and provide treatment strategies for clinicians. The chapter material from this book has evolved from a seminar on PTSD held recently under the auspices of the VA Boston Healthcare System, Boston University Medical Center and Harvard Medical School. We propose a book that will focus on the epidemiology, neurobiology, MRI studies, animal models, arousal and sleep issues, clinical trials, and treatment strategies for clinicians. Treatment will cover such topics as guidelines for treating posttraumatic stress disorder, PTSD and the use of mental health services, cognitive intervention therapy, and large scale clinical trials in PTSD. This collection will be a vital source of information to clinicians and neuroscientists.
Table des matières
Amygdala and Fear.- Post-Traumatic Stress Disorder: Definition, Prevalence, and Risk Factors.- The Amygdala and the Neural Pathways of Fear.- Physiology of the Amygdala: Implications for PTSD.- Counteracting Molecular Pathways Regulating the Reduction of Fear: Implications for the Treatment of Anxiety Diseases.- Memory in PTSD:A Neurocognitive Approach.- Animal Models of Post-Traumatic Stress Disorder.- Toward Animal Models of Post-Traumatic Stress Disorder.- PTSD: From Neurons to Networks.- Post-Traumatic Stress Disorder and Arousal.- Arousal Neurons in the Brain.- Hyperarousal and Post-Traumatic Stress Disorder: A Role for the Hypocretin System.- The Locus Coeruleus-Noradrenergic System and Stress: Implications for Post-Traumatic Stress Disorder.- Effect of Stress on Sleep and Its Relationship to Post-Traumatic Stress Disorder.- Stress hormones in post-traumatic stress disorder.- Stress Hormones and PTSD.- Low Basal Cortisol and Startle Responding as Possible Biomarkers of PTSD: The Influence of Internalizing and Externalizing Comorbidity.- Brain Imaging in Post-Traumatic Stress Disorder.- Functional Neuroimaging in Post-Traumatic Stress Disorder.- The Amygdala in Post-Traumatic Stress Disorder.- Treatment Strategies.- Pharmacologic Treatment of PTSD.- Guided Imagery as a Therapeutic Tool in Post-Traumatic Stress Disorder.- Virtual Reality Exposure Therapy for Combat-Related PTSD.
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