Funding for this study was provided by a grant from the U.S. Department of Defense (C.A.M.).
Decreased respiratory sinus arrhythmia in individuals with deceptive intent
Article first published online: 4 MAR 2010
Copyright © 2010 Society for Psychophysiological Research
Volume 47, Issue 4, pages 633–636, July 2010
How to Cite
Aikins, D. E., Martin, D. J. and Morgan, C. A. (2010), Decreased respiratory sinus arrhythmia in individuals with deceptive intent. Psychophysiology, 47: 633–636. doi: 10.1111/j.1469-8986.2010.00976.x
- Issue published online: 9 JUN 2010
- Article first published online: 4 MAR 2010
- (Received February 20, 2009; Accepted August 12, 2009)
- Normal volunteers;
- Heart rate
In detecting deception, the Cognitive Load hypothesis states that lying requires more cognitive resources compared to truth telling. Further, increases in cognitive load are predicted to decrease respiratory sinus arrhythmia (RSA). We evaluated the impact of cognitive tasks and the intent to deceive on RSA in 40 male, native Arabic-speaking participants quasi-randomized into truthful (n=14) or deceptive (n=26) groups. Participants donned an ambulatory physiologic recording device and completed cognitive testing after receiving translated instructions about their role in an impending mock crime. The results show that a decrease in RSA recorded during the cognitive testing was greater in individuals who were about to commit a deceptive act.