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Home • About Us • Laboratory Services • Forensic Science Communications • Back Issues • October 1999 • The Finapres (Volume Clamp) Recording Method in...

The Finapres (Volume Clamp) Recording Method in Psychophysiological Detection of Deception Examinations: Table 2 (Forensic Science Communications, October 1999)

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October 1999 - Volume 1 - Number 3

The Finapres (Volume Clamp) Recording Method in Psychophysiological Detection of Deception Examinations: Experimental Comparison With the Cardiograph Method

Table 2:

Confidence Intervals for Finapres Group Minus Cardiograph Group Differences

  Boundaries of 95% Confidence Intervals for Differences in Mean Standardized Difference Scores
Innocent Guilty
Measure Lower Upper Lower Upper
Skin Conductance Amplitude

-0.15

0.81

-0.36

0.42
Respiration Excursion

-0.06

0.80

-0.13

0.53
Finapres/Cardiograph† Amplitude

-0.43

0.53

-0.37

0.35
Finapres/Cardiograph† Pulse Amplitude

-0.33

0.81

-0.68

0.12
Heart Period Amplitude

-0.43

0.51

-0.24

0.56
n

40

40

† These differences were obtained by subtracting measures of cardiograph recordings (cardiograph group) from measures of Finapres recordings (Finapres group).

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