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Acute Stress Disorder: Encyclopedia of Medicine (631 words) |
 | Acute stress disorder (ASD) is an anxiety disorder characterized by a cluster of dissociative and anxiety symptoms occurring within one month of a traumatic event. |
| Acute stress disorder is a new diagnostic category that was introduced in 1994 to differentiate time-limited reactions to trauma from post-traumatic stress disorder (PTSD). |
| Acute stress disorder is caused by exposure to trauma, which is defined as a stressor that causes intense fear and, usually, involves threats to life or serious injury to oneself or others. |
| PsycSearch (435 words) |
| Acute stress disorder is a psychological condition arising in response to a terrifying event. |
| The onset of a stress response is associated with specific physiological actions in the sympathetic nervous system, both directly and indirectly through the release of epinephrine and to a lesser extent norepinephrine from the medulla of the adrenal glands. |
| By definition, acute stress disorder is a result of a traumatic event in which the person experienced or witnessed an event that involved threatened or actual serious injury or death and responded with intense fear and helplessness. |
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