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Post Traumatic Events

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I. Reactions to Traumatic Events
Psychologists and physicians have long been interested in vulnerability and resilience factors in reaction to extreme stress. Earlier accounts of posttrauma reactions focused on descriptions of cases. Spurred by inclusion of Post-traumatic Stress Disorder (PTSD) in the psychiatric diagnosis nomenclature in 1980, experimental research has examined many facets of the phenomenon.
In the Diagnostic and Statistical Manual (DSM-IV) published by the American Psychiatric Association in 1994, a trauma is defined as an experienced or witnessed event that involves threat of death or serious injury, and which evokes feelings of terror, horror, or helplessness. Thus, events such as anticipated death of a loved one, job …show more content…
Many trauma victims report being disoriented and anxious after a trauma and have difficulty sleeping and concentrating. Victims are often reluctant to talk about the trauma or deliberately contemplate it; nevertheless the traumatic memory intrudes on their thoughts quite frequently. In recognition of the severe distress and psychological dysfunction that often occur immediately after a trauma, a new diagnostic classification called Acute Stress Disorder (ASD) was adopted in the DSM-IV in 1994. The focus of this disorder is on dissociative features, and, consequently, the symptom criteria include at least three of the following: a sense of numbing, detachment, or lack of emotional responsiveness, a reduction in awareness of surroundings (e.g., being in a daze), derealization, depersonalization, and dissociative amnesia. Reexperiencing of the trauma, avoidance, and arousal, as defined in the criteria for PTSD, must also exist. A diagnosis of Acute Stress Disorder is warranted when such symptoms last between 2 days and 1 month, occur within 1 month of the trauma, and interfere significantly with daily …show more content…
The symptoms fall into three clusters. First, the individual must reexperience the trauma in one of the following ways: nightmares, flashbacks, or intrusive and distressing thoughts about the event; or intense emotional distress or physiological reactivity when reminded of the event. Second, the individual must have three of the following avoidance symptoms: avoidance of thoughts or feelings related to the trauma, avoidance of trauma reminders, psychogenic amnesia, emotional numbing, detachment or estrangement from others, decreased interest in leisure activities, or a sense of foreshortened future. Third, the individual must experience two of the following arousal symptoms: difficulty falling or staying asleep, difficulty concentrating, irritability or outbursts of anger, hypervigilance, or an exaggerated startle response. To meet diagnostic criteria for PTSD, the symptoms must cause significant impairment in daily functioning. These criteria provide a good operational definition of PTSD, as they describe the symptoms seen in most cases. However, the three categories of symptoms are not empirically validated as distinct symptom clusters. For instance, it is not clear that the symptoms of behavioral avoidance and emotional numbing are similar and belong in the same

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