GPN Newsroom (Articles)
Untangling Truth From Fiction: What Brain Activity Reveals About Deception
Uncover how brain activity and the autonomic nervous system reveal deception, & learn how polygraph tests detect lies through physiological responses.
The Truth About Xanax and Polygraph Accuracy
Learn if Xanax affects polygraph accuracy, how lie detector tests detect countermeasures, and why using the drug won’t guarantee passing.
Why Pathological Liars Keep Spinning Stories
Learn why people lie, from avoiding punishment to pathological lying, and discover how polygraph tests detect deception in habitual and compulsive liars.
Are Lie Detector Tests and Science a Reliable Ally for Abuse Victims?
When it comes to abuse, a lot of people who never speak up are simply afraid of not being believed. Unless there’s camera footage or witnesses, how do you prove you’re telling the truth?
Exploring Acquaintance Testing In Modern Polygraph Examinations
Learn how acquaintance testing in polygraph exams builds baselines, calibrates equipment, and improves accuracy for credible lie detector results.
Polygraph Sensor Calibration: How Precision Tuning Improves Test Reliability
Learn how polygraph calibration improves reliability in lie detector tests. Proper tuning of sensors ensures accurate data, valid results, and industry compliance.
Analog vs. Computerized Polygraphs: Comparing Two Generations of Lie Detectors
Compare analog and computerized polygraph machines. Learn which lie detector delivers greater accuracy, reliability, and efficiency in deception testing.
How Law Enforcement Leverages Lie Detector Tests During Investigations
Discover how polygraphs shaped law enforcement, from Father Heslin’s 1921 case to modern investigations, screenings, and workplace probes.
A Guide to U.S. Government Security Clearance Levels and Their Requirements
Learn about U.S. security clearance levels and how polygraph tests support screening, protect classified data, and strengthen national security.