Explore the psychophysiological science behind the CQT polygraph: differential salience, ANS responses, three measurement channels, and 89% mean accuracy confirmed by APA meta-analyses.
Read Article →Complete guide to cardiovascular arousal in polygraph testing. Learn how heart rate, blood pressure, and blood volume changes are measured and scored.
Read Article →Learn how the autonomic nervous system drives polygraph testing — from fight-or-flight responses to EDA, cardiovascular, and respiratory channels measured during examinations.
Read Article →Learn how suppression responses across respiratory, electrodermal, and cardiovascular channels help polygraph examiners detect deception in chart analysis.
Read Article →Master the psychophysiology behind polygraph data: ANS activation, EDA, cardiovascular dynamics, and respiratory mechanics for accurate, defensible examinations.
Read Article →Expert guide on how autism spectrum disorder affects polygraph testing — covering ANS differences, sensory challenges, communication barriers, and examiner accommodations.
Read Article →Explore the science behind polygraph testing: cognitive load theory, the autonomic nervous system, and the three physiological channels that make deception detection possible.
Read Article →Learn how a polygraph measures breathing, blood pressure, sweat & movement to detect deception. Science, sensors, accuracy data & the full exam process.
Read Article →Discover how the psychogalvanometer measures skin conductance changes caused by emotional arousal — and why EDA is a core channel in every modern polygraph.
Read Article →Can you deceive a polygraph test? Explore the science behind lie detectors, common countermeasures people try, why they fail, and what examiners look for.
Read Article →Discover the involuntary physiological reactions your body produces during deception — heart rate, blood pressure, breathing, and sweat gland changes polygraphs detect.
Read Article →Science-based breakdown of 10 popular polygraph countermeasures and why trained examiners detect them. Breathing tricks, pain, drugs — none beat a real exam.
Read Article →Research confirms polygraph testing remains valid for events during intoxication. Studies show no significant effect on outcomes when examinees are sober at testing time.
Read Article →Complete guide to PLE plethysmograph technology in polygraph testing — sensor mechanics, waveform interpretation, scoring integration, and peer-reviewed research.
Read Article →