polygraph machine
Truth-testing device
A polygraph machine measures physiological responses—heart rate, blood pressure, breathing, skin conductivity—while a person answers questions.
The theory is that lying produces detectable stress.
Widely called a lie detector, though its reliability is disputed and results are generally inadmissible in court.
They hooked him up to a polygraph machine and asked about the missing funds.
- heart rate monitorDevice measuring heartbeats continuously
- galvanometerMeasures electrical flow strength
- chartData shown visually
- answerSolution to query
- tell the truthCommunicate facts honestly
needle · paper · sweat · question · pulse · chest · breath · strap · lie detector · blood pressure · wires · probe · job interview · pen · baseline · click · chair · ink
- skin conductancegalvanometer
polygraph machinetelepathy
Direct mental communication
omniscience · mind-reading · divine judgment · psychic reading · truth serum
polygraph machinemathematical proof
Logical demonstration of truth
DNA evidence · fingerprint analysis · video footage · hard evidence · forensic evidence
polygraph machinegood faith
Sincere, honest intent
trust · presumption of innocence · benefit of the doubt · honor system · blind faith
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