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Can Playing the Computer Game "Tetris'' Reduce the Build-Up of Flashbacks for Trauma?: A Proposal from Cognitive Science
Univ Oxford, Dept Psychiat, Oxford, England.ORCID iD: 0000-0001-7319-3112
Univ Oxford, Dept Psychiat, Oxford, England.
Univ Oxford, Dept Psychiat, Oxford, England.
Univ Oxford, Dept Psychiat, Oxford, England.
2009 (English)In: PLoS ONE, E-ISSN 1932-6203, Vol. 4, no 1, article id e4153Article in journal (Refereed) Published
Abstract [en]

Background: Flashbacks are the hallmark symptom of Posttraumatic Stress Disorder (PTSD). Although we have successful treatments for full-blown PTSD, early interventions are lacking. We propose the utility of developing a 'cognitive vaccine' to prevent PTSD flashback development following exposure to trauma. Our theory is based on two key findings: 1) Cognitive science suggests that the brain has selective resources with limited capacity; 2) The neurobiology of memory suggests a 6-hr window to disrupt memory consolidation. The rationale for a 'cognitive vaccine' approach is as follows: Trauma flashbacks are sensory-perceptual, visuospatial mental images. Visuospatial cognitive tasks selectively compete for resources required to generate mental images. Thus, a visuospatial computer game (e.g. "Tetris'') will interfere with flashbacks. Visuospatial tasks post-trauma, performed within the time window for memory consolidation, will reduce subsequent flashbacks. We predicted that playing "Tetris'' half an hour after viewing trauma would reduce flashback frequency over 1-week. Methodology/Principal Findings: The Trauma Film paradigm was used as a well-established experimental analog for Posttraumatic Stress. All participants viewed a traumatic film consisting of scenes of real injury and death followed by a 30-min structured break. Participants were then randomly allocated to either a no-task or visuospatial ("Tetris'') condition which they undertook for 10-min. Flashbacks were monitored for 1-week. Results indicated that compared to the no-task condition, the "Tetris'' condition produced a significant reduction in flashback frequency over 1-week. Convergent results were found on a clinical measure of PTSD symptomatology at 1-week. Recognition memory between groups did not differ significantly. Conclusions/Significance: Playing "Tetris'' after viewing traumatic material reduces unwanted, involuntary memory flashbacks to that traumatic film, leaving deliberate memory recall of the event intact. Pathological aspects of human memory in the aftermath of trauma may be malleable using non-invasive, cognitive interventions. This has implications for a novel avenue of preventative treatment development, much-needed as a crisis intervention for the aftermath of traumatic events.

Place, publisher, year, edition, pages
PUBLIC LIBRARY SCIENCE , 2009. Vol. 4, no 1, article id e4153
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Psychology
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URN: urn:nbn:se:uu:diva-405522DOI: 10.1371/journal.pone.0004153ISI: 000265473300016PubMedID: 19127289OAI: oai:DiVA.org:uu-405522DiVA, id: diva2:1404149
Available from: 2020-02-28 Created: 2020-02-28 Last updated: 2020-02-28

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