Polygraph
Type: Product
As of November 2026, Polygraph has been mentioned in 4 episodes across 2 podcasts, first heard Aug 2025 on Dateline NBC.
A polygraph, often incorrectly referred to as a lie detector, is a device that measures and records several clinical biomarkers, such as blood pressure, pulse, respiratory rate, and skin conductivity, and it is used while a person answers a series of questions to purportedly detect lies. Polygraphic assessments rely on the discredited assumption that variations in physiological mechanisms or functional states, could reliably account for psychophysiological phenomena supposedly invoked by lying.
| Mentioned in | 4 episodes on 2 podcasts (as of November 2026) |
|---|---|
| First heard | Aug 2025 on Dateline NBC |
| Company | Various manufacturers |
| Category | Physical good |
| Maker | Various manufacturers |
How do different shows talk about Polygraph?
2 shows discussed Polygraph in these episodes.
- Dateline NBC — 3 episodes
Treated as unreliable and misleading despite its influence: not admissible; not always reliable; yet it started pointing toward the husband.
Talking Dateline: “A Perfect Spring Morning" with Lester Holt and Blayne Alexander - Crime Junkie — 1 episode
Who talks about Polygraph on podcasts?
Blaine Alexander brought up Polygraph; the most recent mention was Nov 2025 on Crime Junkie.
- How Did Two Girls Vanish from San Miguel’s Streets Without a Trace? on Crime Junkie (Nov 2025)
- Talking Dateline: “A Perfect Spring Morning" with Lester Holt and Blayne Alexander on Dateline NBC (Oct 2025)
- Talking Dateline: "Secrets of Exam Room 9" with Lester Holt and Andrea Canning | Dateline NBC on Dateline NBC (Sep 2025)
- Talking Dateline: "Open Water" | Dateline NBC on Dateline NBC (Aug 2025) — Blaine Alexander
What is Polygraph mentioned alongside?
Polygraph is most often mentioned alongside Dateline NBC, Cold Case and John Hanks Alexander.
Mentioned together: Dateline NBC, Cold Case, John Hanks Alexander, Deepfake, Deline NBC, DLine, Lester Holt, Nashville, Maryland, Social Media