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Updated: Jul 9, 2026

Investigation into Deep Breathing through Measurement of Ventilatory Parameters and Observation of Breathing Patterns
Published on: September 16, 2019
Covert respiration measures for the detection of concealed information
Eitan Elaad1, Gershon Ben-Shakhar
1Ariel University Center, Ariel, Israel. elaad@netvision.net.il
Abstract:
A mock-theft experiment was designed to assess the efficiency of two covert respiration measures in detection of concealed information. The covert measures were further compared with three standard measures typically used for the detection of concealed knowledge (electrodermal, respiration and finger pulse measures). Results revealed that the covert respiration measures produced good discrimination between "guilty" (participants possessing concealed knowledge) and "innocent" participants. One of the covert measures produced detection efficiency that was similar to that of the standard respiration and finger pulse measures, but less than the electrodermal measure.
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