Changes in trauma memory and patterns of posttraumatic stress

The traditional static view of trauma memory holds that memories for such events are fixed and relatively unchanging over time. A more recent dynamic view proposes that memory for potential trauma, like memory for ordinary events, changes with time. The present study examined predictions from these competing theories in repeated assessments of high exposed survivors of the September 11th (9/11) attacks. Memory was assessed using both standardized questionnaires and a free recall paradigm. These data and a measure of posttraumatic stress were obtained at 7 and 18 months post-9/11. Results showed that survivors' recollections of 9/11 varied between assessment points and were moderated by their trajectory of posttraumatic stress. Individuals who were either resilient or recovered over time created a more benign memory of the event over time, whereas individuals who experienced chronic posttraumatic stress had relatively unchanging memories. (PsycINFO Database Record (c) 2012 APA, all rights reserved)

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Reference: 
Dekel S,Bonanno GA, | 2013
Psychological Trauma: Theory, Research, Practice, and Policy | 5 | 1 | 26-34
http://psycnet.apa.org/journals/tra/5/1/26/