Deception detection using oculomotor, cardiovascular, respiratory and electrodermal measures

A system for deception detection assessment and credibility analysis including:

• a processor, the processor presenting to a subject one or more questions in an assessment protocol;
• an eye tracking device connected to the processor comprising:
• an infrared camera that is positioned to be able to track an oculomotor movement of the subject during the assessment protocol;
• the processor extracting features from oculomotor data obtained by the eye-tracking device to calculate a cognitive load assessment from the assessment protocol;
• a set of physiological sensors in operative communication with the processor. comprising:
• an electrodermal sensor connected to the processor positioned to be able to detect the electrodermal activity of the subject during the assessment protocol;
• a respiration sensor connected to the processor positioned to be able to detect respiration of the subject during the assessment protocol;
• at least one cardiovascular sensor connected to the processor positioned to be able to detect the cardiovascular activity of the subject during the assessment protocol;
• the processor extracting features from physiological data obtained by the set of physiological sensors during the assessment protocol to calculate a first probability of deception;
• the processor computing an overall probability of deception from the cognitive load assessment and the first probability of deception.