Right inferior frontal gyrus activation as a neural marker of successful lying

Vartanian, Oshin, Kwantes, Peter J., Mandel, David R., Bouak, Fethi, Nakashima, Ann, Smith, Ingrid and Lam, Quan (2013) Right inferior frontal gyrus activation as a neural marker of successful lying. Frontiers in Human Neuroscience, 7 OCT: . doi:10.3389/fnhum.2013.00616

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Author Vartanian, Oshin
Kwantes, Peter J.
Mandel, David R.
Bouak, Fethi
Nakashima, Ann
Smith, Ingrid
Lam, Quan
Title Right inferior frontal gyrus activation as a neural marker of successful lying
Journal name Frontiers in Human Neuroscience   Check publisher's open access policy
ISSN 1662-5161
Publication date 2013-10-03
Year available 2013
Sub-type Article (original research)
DOI 10.3389/fnhum.2013.00616
Open Access Status DOI
Volume 7
Issue OCT
Total pages 6
Place of publication Lausanne, Switzerland
Publisher Frontiers Research Foundation
Language eng
Abstract There is evidence to suggest that successful lying necessitates cognitive effort. We tested this hypothesis by instructing participants to lie or tell the truth under conditions of high and low working memory (WM) load. The task required participants to register a response on 80 trials of identical structure within a 2 (WM Load: high, low) × 2 (Instruction: truth or lie) repeated-measures design. Participants were less accurate and responded more slowly when WM load was high, and also when they lied. High WM load activated the fronto-parietal WM network including dorsolateral prefrontal cortex (PFC), middle frontal gyrus, precuneus, and intraparietal cortex. Lying activated areas previously shown to underlie deception, including middle and superior frontal gyrus and precuneus. Critically, successful lying in the high vs. low WM load condition was associated with longer response latency, and it activated the right inferior frontal gyrus—a key brain region regulating inhibition. The same pattern of activation in the inferior frontal gyrus was absent when participants told the truth. These findings demonstrate that lying under high cognitive load places a burden on inhibition, and that the right inferior frontal gyrus may provide a neural marker for successful lying.
Keyword Deception
Event-related fMRI
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Article # 616

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2014 Collection
School of Psychology Publications
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