TY - JOUR
T1 - Detection of deception about multiple, concealed, mock crime items, based on a spatial-temporal analysis of ERP amplitude and scalp distribution
AU - Lui, Ming
AU - Rosenfeld, J. Peter
N1 - Funding Information:
This research was supported by the Department of Defense Polygraph Institute, under grant number DODP198-P-0001.
Publisher copyright:
© 2008 Society for Psychophysiological Research
PY - 2008/9
Y1 - 2008/9
N2 - Three groups, two-probe (2PG), three-probe (3PG), and control (CG), performed a mock crime. 2PG and 3PG stole two and three items, respectively, after a baseline “truth block”; the CG stole nothing. Subjects all completed a second “lie block” after the mock crime. There were four stimuli in truth and lie blocks: truth probe (TP), truth irrelevant (TI), lie probe (LP), and lie irrelevant (LI). Stolen items were probes; other items were irrelevants. Spatial-temporal PCA was applied. For the 2PG, subjects' frontal-central component amplitudes in the 520–644-ms temporal component were significantly more positive for LP than for LI stimulus. Individually, 12 of 14 subjects (far better detection than results [72% hits] with non-PCA analyses methods) in the 2PG were detected, with a false positive rate of 4 of 14 in the CG. No difference between LP and LI was found in 3PG data. In summary, spatial-temporal PCA improves detection of concealed information.
AB - Three groups, two-probe (2PG), three-probe (3PG), and control (CG), performed a mock crime. 2PG and 3PG stole two and three items, respectively, after a baseline “truth block”; the CG stole nothing. Subjects all completed a second “lie block” after the mock crime. There were four stimuli in truth and lie blocks: truth probe (TP), truth irrelevant (TI), lie probe (LP), and lie irrelevant (LI). Stolen items were probes; other items were irrelevants. Spatial-temporal PCA was applied. For the 2PG, subjects' frontal-central component amplitudes in the 520–644-ms temporal component were significantly more positive for LP than for LI stimulus. Individually, 12 of 14 subjects (far better detection than results [72% hits] with non-PCA analyses methods) in the 2PG were detected, with a false positive rate of 4 of 14 in the CG. No difference between LP and LI was found in 3PG data. In summary, spatial-temporal PCA improves detection of concealed information.
KW - Lie detection
KW - Event-related potential
KW - Spatial-temporal PCA
KW - Mock crime
UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-49649092645&origin=resultslist&featureToggles=FEATURE_NEW_DOC_DETAILS_EXPORT:1
U2 - 10.1111/j.1469-8986.2008.00683.x
DO - 10.1111/j.1469-8986.2008.00683.x
M3 - Journal article
SN - 0048-5772
VL - 45
SP - 721
EP - 730
JO - Psychophysiology
JF - Psychophysiology
IS - 5
ER -
