Instrument

Psychological Stress Evaluator

The Psychological Stress Evaluator (PSE) was the original voice stress analyser, introduced in 1971 by Dektor Counterintelligence and Security. No longer manufactured, it was the precursor to devices like the CVSA. Independent research found no reliable accuracy for deception detection.

What Is the PSE?

The Psychological Stress Evaluator (PSE) was the original voice stress analyser, introduced in 1971 by Dektor Counterintelligence and Security. No longer manufactured, it was the precursor to devices like the CVSA. Independent research found no reliable accuracy for deception detection.