Event-Related Potentials and the Detection of Deception: A Two-Stimulus Paradigm.

reportActive / Technical Report | Accession Number: ADA318987 | Open PDF

Abstract:

Event-related potentials ERP employed in two studies exp. 1, n 20 females exp. 2, n 20 males attempted to distinguish subjects who had participated in a mock crime guilty group from innocent subjects who did not perform in the crime scenario. A two-stimulus paradigm was used in which neutral and crime relevant questions were followed by either a yes or a no target stimulus. Subjects were instructed to indicate their agreement or disagreement that the yes or no target stimulus was consistent with the truth of the preceding question. Guilty subjects were told to deny the truth of the crime relevant items. In both experiments, P3 amplitude was smaller for the guilty subjects in the crime relevant condition than comparison conditions when the task demanded an agree response. In experiment 1, P3 amplitude to the target stimulus was smaller for guilty than innocent subjects in the crime relevant condition when an agree response was demanded. This effect was also apparent in the ERP waveforms for experiment 2, but it was not statistically significant.

Author(s):
Stelmack, Robert M. ; Houlihan, Michael ; Doucent, Cynthia
Author Organization(s):
OTTAWA UNIV (ONTARIO)
Descriptive Note:
Final rept. Apr 93-Nov 94,
Pagination:
0035

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
DODPI-93-R-0004, DODPI-93-P-0008
Contract/Grant Number(s):
N00014-93-1-1002
Monitor Series:
93-R-0004, 93-P-0008, DODPI
 Subject Terms
Joint Capability Areas:
JCA_1.2.7_Experimentation; JCA_5_Command and Control; JCA_5.3_Planning; JCA_5.5.2_Task; JCA_5.5_Direct; JCA_2_Battlespace Awareness; JCA_1_Force Support; JCA_2.3_Processing and Exploitation; JCA_1.2_Force Preparation; JCA_1.2.3_Educating; JCA_5.2.2_Develop Knowledge and Situational Awareness; JCA_5.2_Understand; JCA_8.2.5_Strengthen Global Defense Posture; JCA_8.2_Shape; JCA_8_Building Partnerships
Modernization Areas:
Microelectronics
Communities of Interest:
Counter IED
Descriptor(s):
*ELECTROENCEPHALOGRAPHY, *LIE DETECTORS, STIMULATION(PHYSIOLOGY), COMPUTER AIDED DESIGN, COMPARISON, STRESS(PSYCHOLOGY), STRESS(PHYSIOLOGY), DECEPTION, VOICE COMMUNICATIONS, REACTION(PSYCHOLOGY), PSYCHOPHYSIOLOGY, CRIMES, CRIMINAL INVESTIGATIONS, THEFT, CUES(STIMULI), GALVANIC SKIN RESPONSE, PSYCHOLINGUISTICS
Field(s)/Group(s):
Psychology
Keyword(s):
EVENT RELATED POTENTIALS
Report Date:
1994 Nov 01
Creation Date:
1997 Jan 08