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Abstract

Lying is assumed to increase cognitive load, and it has been shown to slow response times to simple questions. We employed a dual‐task methodology, the detection response task (DRT), to assess cognitive load in telling narrative lies in a live, open‐question interview. The DRT requires participants to press a button in response to a tactile stimulus every 3–5 s while performing a primary task, in this case, recounting either truthful or deceitful narratives. We found weak support for slowing in the time to initiate a narrative response when lying. In contrast, we found strong support for an increase in cognitive load when producing a narrative lie, as measured by both slowed DRT responses and increased response omissions, although this effect decreased with time on task. We advocate dual‐task methodologies such as the DRT for increasing understanding of the assumptions made by theories of deception and for refining lie detection techniques.

Item Type:	Article
Authors/Creators:	Bird, L and Gretton, M and Cockerell, R and Heathcote, A
Keywords:	deception, cognitive load, Detection Response Task
Journal or Publication Title:	Applied Cognitive Psychology
Publisher:	John Wiley & Sons Ltd
ISSN:	0888-4080
DOI / ID Number:	10.1002/acp.3567
Copyright Information:	© 2019 John Wiley & Sons, Ltd.This is the peer reviewed version of the following article: Bird, L, Gretton, M, Cockerell, R, Heathcote, A. The cognitive load of narrative lies. Appl Cognit Psychol. 2019; 33: 936– 942., which has been published in final form at https://doi.org/10.1002/acp.3567 This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
Related URLs:	Google Scholar: Heathcote, A UTAS Profile: Heathcote, A
Item Statistics:	View statistics for this item

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