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Polygraph and CVSA Forums => Polygraph Procedure => Topic started by: JoJo22 on Aug 26, 2008, 02:10 PM

Title: Directed Lie and CMs and Depressants
Post by: JoJo22 on Aug 26, 2008, 02:10 PM
I have read the book and am a little unclear on one thing.  Do you use countermeasures for the control questions in a directed-lie format?  

Also, if you are really nervous, would it be beneficial to take some kind of depressant to calm you down and give you a more controlled "baseline" to work from?
Title: Re: Directed Lie and CMs and Depressants
Post by: George W. Maschke on Aug 27, 2008, 01:38 AM
Quote from: JoJo22 on Aug 26, 2008, 02:10 PMI have read the book and am a little unclear on one thing.  Do you use countermeasures for the control questions in a directed-lie format?

Yes. If you're planning to use countermeasures, you would want to ensure that you show a significant reaction to the "control" questions, whether probable- or directed-lie.

QuoteAlso, if you are really nervous, would it be beneficial to take some kind of depressant to calm you down and give you a more controlled "baseline" to work from?

Perhaps, but I'm not aware of any conclusive research in this regard. The key to passing a polygraph "control question test" is to show stronger reactions to the control questions than to the relevant questions. It's not necessary to show no reaction at all to relevant questions.

For detailed information on polygraph procedure and countermeasures, see The Lie Behind the Lie Detector (https://antipolygraph.org/lie-behind-the-lie-detector.pdf).
Title: Re: Directed Lie and CMs and Depressants
Post by: wanda loo on Sep 24, 2008, 11:33 AM
I have been reading about the polygraph and control questions ect... i still dont understand how to "work" a controlled question...  or the biting of ones tongue??? please can someone clarify this
Title: Re: Directed Lie and CMs and Depressants
Post by: Administrator on Sep 26, 2008, 10:58 AM
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