Detection of deception in structured interviews using sensors and algorithms

Deceptive intent

“…In Chapter 2, we presented two studies in which we put the idea that already the mere intention to lie could be measured to a first test. Previous work consistently showed that sympathetic nervous system (SNS) activity is higher during lying than truth telling (Cunha et al, 2010;Jung & Lee, 2012;Watson & Sinha, 1993). This can be related to stress and cognitive load, both accompanying lying (Zuckerman et al, 1981) and both inducing an increase in SNS (Engström et al, 2005;Hout et al, 2000;Lacey et al, 1963;Nourbakhsh et al, 2012;Page & Robson, 2007;Shi et al, 2007;Wilson, 2002).…”

“…Although this approach increases external validity, topical interviews (such as in the current study) bear other complications such as identifying the source of physiological changes (Cunha et al, 2010). We aimed to overcome this challenge by testing the relationship between self-reported stress and cognitive load and tonic EDA, and found relations between those measures.…”

“…Most of the research on physiological detection of deception has focused on the act of lying, and contrasts specific statements that are either truths or lies (Hartwig & Bond Jr, 2011;Watson & Sinha, 1993). These studies build on the fact that there are consistent differences in the physiological response of the sympathetic nervous system when lying or when telling the truth (Cunha et al, 2010;Jung & Lee, 2012;Watson & Sinha, 1993). However, categorizing statements as either truths or lies neglects that deception may take a variety of forms, ranging from its most direct form, fabrication, to more subtle forms including half-truths, vagueness, equivocations, and concealments (Carlson et al, 2004).…”

“…Also, feelings of nervousness and stress may accompany lying (Burgoon & Buller, 1994;Vrij, Ennis, Farman, & Mann, 2010), which can be related to different emotions (Ekman, 1989). These differences are reflected in increased sympathetic nervous system (SNS) activity (Cunha et al, 2010;Jung & Lee, 2012;Watson & Sinha, 1993).…”