Term Papers on Post-Traumatic Stress Disorder from Term Papers Lab.
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Posttraumatic Stress Disorder
Posttraumatic Stress Disorder
Prevalence 3.6-8.0% of U.S. adults
May occur at any age; triggered by trauma
Women more likely affected
Minority groups have much higher rates of PTSD than do non-Hispanic white persons
30% of the men and women who have spent time in the war zones
Pathophysiology
Reduced hippocampal volume among those exposed to combat trauma, sexual assault, or MVA's
Increased regional cerebral blood flow to limbic and paralimbic areas esp. right amygdala, decreased blood flow to Broca's area in the left temporal lobe
Sympathetic nervous system activation
Autonomic hyperresponsiveness to both neutral and trauma-related stimuli
Elevated urinary catecholamine levels
Downregulation of beta- and alpha-2 adrenergic receptors
Increased reactivity to the alpha-2 antagonist, yohimbine
Hypothalamic-Pituitary-Adrenocortical mobilization
Lower urinary cortisol levels
Elevated lymphocyte glucocorticoid receptor......
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Title: Post-Traumatic Stress Disorder
Approximate Word Count: 980
Approximate Pages: 4 (250 words per double-spaced page)
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