Individuals trying to conceal knowledge from interrogators are likely to experience raised levels of stress that can manifest itself across biological, physiological, psychological and behavioural factors, providing an opportunity for detection. Using established research paradigms an innovative scalable interrogation was designed in which participants were given a 'token' that represented information they had to conceal from interviewers. A control group did not receive a token and therefore did not have to deceive the investigators. The aim of this investigation was to examine differences between deceivers and truth-tellers across the four factors by collecting data for cortisol levels, sweat samples, heart-rate, respiration, skin temperature, subjective stress ratings and video and audio recordings. The results provided an integrated understanding of responses to interrogation by those actively concealing information and those acting innocently. Of particular importance, the results also suggest, for the first time in an interrogation setting, that stressed individuals may secrete a volatile steroid based marker that could be used for stand-off detection. The findings are discussed in relation to developing a scalable interrogation protocol for future research in this area.
Bibliographical noteNOTICE: this is the author’s version of a work that was accepted for publication in Applied Ergonomics. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Applied Ergonomics [Vol 47, (2015)] DOI: 10.1016/j.apergo.2014.08.015.
- Control groups
- Hostile reconnaissance
- Skin temperatures
- Standoff detection
- Behavioral research
Stedmon, A., Eachus, P., Baillie, L., Tallis, H., Donkor, R., Edlin-White, R., & Bracewell, R. (2015). Scalable interrogation: Eliciting human pheromone responses to deception in a security interview setting. Applied Ergonomics, 47, 26-33. https://doi.org/10.1016/j.apergo.2014.08.015