Motion Effects on Intrusion Development

J. Krans*, G. Näring, E.A. Holmes, E.S. Becker

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review


Analogue studies on intrusion development have found that visuospatial tasks performed during the encoding of aversive information reduce subsequent intrusion development. However, these studies cannot rule out a physical explanation in terms of simple movement. In the current study we addressed this issue. Healthy participants viewed an aversive film while performing a visuospatial movement task, a configurational movement task, or no task. Intrusive images from the film were reported in a diary during the week following film viewing. In line with an information-processing account of posttraumatic stress disorder, intrusion frequency was significantly reduced by the visuospatial movement task but not the configurational movement task compared to no task. This finding supports the role of visuospatial processing specifically in intrusion development.
Original languageEnglish
Pages (from-to)73-82
Number of pages10
JournalJournal of Trauma & Dissociation
Issue number1
Publication statusPublished - 2010
Externally publishedYes


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