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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 5 (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 5:

Relationships Between Finapres and Cardiograph Levels Recorded Simultaneously

  Boundaries of 95% Confidence Intervals
Diastolic Levels Systolic Levels
Standardized Regression Coefficient Constant
(mmHg)		 Standardized Regression Coefficient Constant
(mmHg)
Role/
Question Type 		 Lower Upper Lower Upper Lower Upper Lower Upper
Innocent
(n = 20)

 
Control Questions

.82

.89

-0.4  

0.5

.63

.80

-0.6  

1.6
Relevant Questions

.81

.89

-0.2  

0.9

.63

.79

-0.9  

1.9
Pooled Questions

.82

.89

-0.2  

0.7

.64

.80

-0.5  

1.6
Guilty
(n = 20)

 
Control Questions

.81

.89

-0.5  

0.6

.68

.81

-0.9  

2.4
Relevant Questions

.80

.88

0.1  

1.1

.68

.82

0.7  

3.7
Pooled Questions

.80

.88

-0.1  

0.8

.67

.81

0.0  

2.9
Combined
Roles
(n = 40)

 
Control Questions

.83

.88

-0.3  

0.4

.68

.79

-0.3  

1.6
Relevant Questions

.82

.88

0.1  

0.8

.69

.78

0.3  

2.3
Pooled Questions

.82

.87

0.0  

0.6

.69

.79

0.1  

1.9

Shown are confidence intervals for subject-by-subject linear regression statistics. Finapres levels were treated as the dependent variable in the regression analyses.

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