>> To prepare for the test, I read A Tremor in the Blood by David T. Lykken. The book described the use of control versus relevant questions as well as countermeasure such as butt-clenching.
This explains that other thing I read yesterday, in a different article about the polygraph test:
"There may be something that's put on the tip of the finger that records blood flow and we also use something called a movement detector which is on the seat and picks up if you're trying to beat the test," Prof Grubin explains.
not to mention that butt-clenching is just the simplest way of nonvisibly messing with your vital signs. a guy walking in off the street can butt clench.
once you get into some of the intermediate level buddhist body awareness studies, you won't need the butt clench to cause your muscle tenor, heart rate, body temp, and respiration to respond to your will.
This explains that other thing I read yesterday, in a different article about the polygraph test:
"There may be something that's put on the tip of the finger that records blood flow and we also use something called a movement detector which is on the seat and picks up if you're trying to beat the test," Prof Grubin explains.
https://www.bbc.com/news/world-us-canada-45736631
So that's not a "movement detector". It's a butt-clench detector.
That's just the level of seriousness I'd expect from modern-day sorcery with wires and computers, instead of fetishes and incantations.