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Please use this identifier to cite or link to this item: http://hdl.handle.net/10373/1275

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Title: Witnesses in action: the effect of physical exertion on recall and recognition
Authors: Hope, Lorraine
Lewinski, William
Dixon, Justin
Blocksidge, David
Gabbert, Fiona
Affiliation: University of Abertay Dundee. School of Social & Health Sciences
Keywords: Eyewitness memory
Memory
Physical exertion
Law enforcement
Fatigue
Policing
Issue Date: Apr-2012
Publisher: SAGE Publications
Type: Journal Article
Refereed: peer-reviewed
Rights: Published version (c)SAGE Publications, available from http://dx.doi.org/10.1177/0956797611431463
Citation: Hope, L., et al. 2012. Witnesses in action: the effect of physical exertion on recall and recognition. Psychological Science. 23(4): pp.386-390. Available from http://dx.doi.org/10.1177/0956797611431463
Abstract: Understanding memory performance under different operational conditions is critical in many occupational settings. To examine the effect of physical exertion on memory for a witnessed event, we placed two groups of law-enforcement officers in a live, occupationally relevant scenario. One group had previously completed a high-intensity physical-assault exercise, and the other had not. Participants who completed the assault exercise showed impaired recall and recognition performance compared with the control group. Specifically, they provided significantly less accurate information concerning critical and incidental target individuals encountered during the scenario, recalled less briefing information, and provided fewer briefing updates than control participants did. Exertion was also associated with reduced accuracy in identifying the critical target from a lineup. These results support arousal-based competition accounts proposing differential allocation of resources under physiological arousal. These novel findings relating to eyewitness memory performance have important implications for victims, ordinary citizens who become witnesses, and witnesses in policing, military, and related operational contexts.
URI: http://hdl.handle.net/10373/1275
ISSN: 0956-7976
Appears in Collections:Social & Health Sciences Collection

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