Simply Mental Health: PTSD

Post-Traumatic Stress Disorder (PTSD)

PTSD, or post-traumatic stress disorder, is an anxiety problem that develops in some people after extremely traumatic events, such as combat, crime, an accident or natural disaster.
People with PTSD may relive the event via intrusive memories, flashbacks and nightmares; avoid anything that reminds them of the trauma; and have anxious feelings they didn’t have before that are so intense their lives are disrupted. (Adapted from the Encyclopedia of Psychology)

Researchers from the Minneapolis VA Medical Center say composite brain scans of PTSD patients show unusual activity in the part of the brain responsible for memory.

(source: http://minnesota.publicradio.org/display/web/2010/10/28/ptsd-brain-scans/)

DSM-IV diagnostic criteria for Post Traumatic Stress Disorder (PTSD)

The diagnostic criteria for Post Traumatic Stress Disorder (PTSD) are defined in DSM-IV as follows:

A. The person experiences a traumatic event in which both of the following were present:

1. the person experienced or witnessed or was confronted with an event or events that involved actual or threatened death or serious injury, or a threat to the physical integrity of self or others;
2. the person's response involved intense fear, helplessness, or horror.
B. The traumatic event is persistently re-experienced in any of the following ways:

1. recurrent and intrusive distressing recollections of the event, including images, thoughts or perceptions;
2. recurrent distressing dreams of the event;
3. acting or feeling as if the traumatic event were recurring (eg reliving the experience, illusions, hallucinations, and dissociative flashback episodes, including those on wakening or when intoxicated);
4. intense psychological distress at exposure to internal or external cues that symbolise or resemble an aspect of the traumatic event;
5. physiological reactivity on exposure to internal or external cues that symbolise or resemble an aspect of the traumatic event.
C. Persistent avoidance of stimuli associated with the trauma and numbing of general responsiveness (not present before the trauma) as indicated by at least three of:

1. efforts to avoid thoughts, feelings or conversations associated with the trauma;
2. efforts to avoid activities, places or people that arouse recollections of this trauma;
3. inability to recall an important aspect of the trauma;
4. markedly diminished interest or participation in significant activities;
5. feeling of detachment or estrangement from others;
6. restricted range of affect (eg unable to have loving feelings);
7. sense of a foreshortened future (eg does not expect to have a career, marriage, children or a normal life span).
D. Persistent symptoms of increased arousal (not present before the trauma) as indicated by at least two of the following:

1. difficulty falling or staying asleep;
2. irritability or outbursts of anger;
3. difficulty concentrating;
4. hypervigilance;
5. exaggerated startle response.
E. The symptoms on Criteria B, C and D last for more than one month.
F. The disturbance causes clinically significant distress or impairment in social, occupational or other important areas of functioning.