EFFICIENCY OF GSR DETECTION OF INFORMATION AS A FUNCTION OF STIMULUS SET SIZE

Abstract

ABSTRACT The reported studies attempted to evaluate the influence of stimulus set size on the efficiency of detection of information through the analysis of GSR responses. Three stimulus set size variations of a standard card detection test were employed. No significant reduction in absolute detection scores was found as the number of cards was increased, and an analysis based on the Theory of Signal Detection also suggested better autonomic discrimination as the stimulus set size increased. The results suggest that the subject responds to the stimuli by dividing them into a single relevant stimulus and a reject category containing all others.