NCJ Number
131530
Journal
Polygraph Volume: 19 Issue: 3 Dated: (1990) Pages: 199-209
Date Published
1990
Length
11 pages
Annotation
The relative utility of constant voltage (Skin Conductance; GSG) and constant current (Skin Resistance; GSR) circuits used for the exosomatic measurement of electrodermal activity was examined by comparing simultaneous recordings from 65 subjects of a laboratory mock crime detection of deception experiment.
Abstract
The circuits were equally sensitive to changes in electrodermal activity. However, the constant voltage circuit required about half as much centering adjustment as did the constant current circuit. Advantages of the constant voltage circuit were discussed. 1 footnote, 1 figure, 2 tables, and 13 references (Author abstract)