| Source | CBS Local |
|---|---|
| Original Load Date | May 14, 2026, 11 a.m. |
| Last Updated | May 14, 2026, 11 a.m. |
| Original URL | https://www.cbsnews.com/chicago/news/northwestern-university-wireless-polygraph-stress/ |
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[ Engineers at Northwestern University ][10] have created a wireless polygraph.
The innovation falls into the same category as devices seen during police
interrogation scenes in movies, but it is not a lie detector. It measures stress
hidden deep within the body by tracking physiological signals su...