THE AMERICAN INSTITUTE OF POLYGRAPH TECHNOLOGY
AND FORENSIC PSYCHOPHYSIOLOGY

 
Test Questions
R10 R9 R8 R7 R6 R5 R4 R3 R2 R1
 
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Polygraph Chart Of An Actual Test Using Lafayette LX5000 Computer Polygraph And PT - 108 Marcy Chair

        The polygraph chart presented above is that of an actual test using the Lafayette LX5000 and the PT - 108 Marcy Chair. The 4 separate inputs from this chair are combined into one input as shown in orange. Notice the movements picked up at the crucial question R4. The PT - 108 Marcy Chair has very sensitive sensors capable of picking up movements which, otherwise would have been missed.



PT - 108 Marcy Chair
     Interfaced With LX5000



PT - 108 Marcy Counter-
        measure Chair