Thursday, September 1, 2011

How does Traumatic Memories affect?

How does Traumatic Memories affect?

Traumatic Memories

People may use their natural ability to dissociate to avoid conscious awareness of a traumatic experience while the trauma is occurring, and for an indefinite time following it. For some people, conscious thoughts and feelings, or "memories," about the overwhelming traumatic circumstance may emerge at a later date. This delayed retrieval of traumatic memories has been written about for nearly 100 years in clinical literature on military veterans who have survived combat.

In fact, in Post Traumatic Stress Disorder (PTSD), a psychiatric diagnosis common among people who have survived horrific events, the defining diagnostic features are memory distortions. People with PTSD inevitably experience extremes of recall regarding traumatic circumstances: intrusive memories of the event (hypernesia) or avoidance of thoughts and feelings about the event (amnesia).

Some people say they are "haunted" by memories of traumatic experiences which intrude on and disrupt their daily lives. They often can't get the "pictures" of the trauma out of their heads. They may have recurring nightmares, "flashbacks," or they may even relive the trauma as if it was happening in present time.

It is also common for traumatized people to make deliberate efforts to avoid thoughts or feelings about the traumatic event and to avoid activities or situations which may remind them of the event. In some severe cases, avoidance of reminders of the trauma may cause a person to have "dissociative amnesia," or memory blanks for important aspects of the trauma.

Traumatic Memories

Why do some people undergoing extreme stress have continuous memory and others have amnesia for all or part of their experience?
There are several factors that influence whether a traumatic experience is remembered or dissociated. The nature and frequency of the traumatic events and the age of the victim seem to be the most important. Single-event traumas (assault, rape, witnessing a murder, etc.) are more likely to be remembered, but repetitive traumas (repeated domestic violence or incest, political torture, prolonged front-line combat, etc.) often result in memory disturbance. The extremely stressful experiences caused by natural or accidental disasters (earthquakes, plane crashes, violent weather, etc.) are more likely to be remembered than traumatic events deliberately caused by humans (i.e. incest, torture, war crimes). People who are adults when they experience traumatic events are less likely to dissociate conscious memories of the events than children who experience trauma. Research shows that the younger the child is at a time of the trauma, the less likely the event will be remembered.

Case studies show that traumatic events in which there is pressure toward secrecy are more likely to induce forgetting as a dissociative defense. For example, a woman who is brutally attacked by a stranger but who receives sympathy, family support, and many opportunities to tell her story, may suffer from PTSD, but is unlikely to develop amnesia for the event. However, a young girl who endures repeated incest with her father and has been sworn to secrecy will more likely have memory impairment for the abuse.

Traumatic Memories

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Tushar Virani

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