Accession Number : ADA304659

Title :   Verbal Conditioning of The Galvanic Skin Response to Deception.

Descriptive Note : Final rept. Jan-Jun 94,

Corporate Author : UNIVERSITY OF SAINT THOMAS ST PAUL MN

Personal Author(s) : Oberlin, Michael

PDF Url : ADA304659

Report Date : JUN 1994

Pagination or Media Count : 29

Abstract : A 'noise instruction' procedure designed to produce anticipatory autonomic response in subjects during deception was examined. Sixty college students were randomly assigned to a 'no instruction' group or a 'noise instruction' group; after all had participated in a mock theft and all were instructed to lie. All subjects were tested twice. In Phase I, none of them received the noise instruction. In Phase II, the experimental subjects were told he would hear 1 or 2 very intense blasts of sound sometime during testing; if they lied. A Lafayette field polygraph and CODAS hardware/software was used with computer to record electrodermal responses. Independent t-tests were used to assess group differences, and paired t-tests were computed for within group comparisons. There were no significant differences between Phase I and Phase II measured responses of either the relevant or control questions for the control group. Here were significant differences between responses to relevant questions for the noise Instruction group and the control group during Phase II. The noise instruction could contribute little to the detection of deception during initial testing because other groups exhibited differential responding to control and relevant questions during phase I testing. During Phase II the GSR of subjects exposed to the noise instruction remained high for the relevant questions while that of control subjects showed a substantial decrease.

Descriptors :   *DETECTION, *DECEPTION, *GALVANIC SKIN RESPONSE, TEST AND EVALUATION, COMPUTER PROGRAMS, CONTROL, STUDENTS, RESPONSE, NOISE, INSTRUCTIONS, AUTONOMIC NERVOUS SYSTEM, THEFT.

Subject Categories : Anatomy and Physiology
      Miscellaneous Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE