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Evidence

University of Georgia School of Law

Series

Deception

Publication Year

Articles 1 - 2 of 2

Full-Text Articles in Law

Review Of Recent Studies And Issues Regarding The P300-Based Complex Trial Protocol For Detection Of Concealed Information, J. Peter Rosenfeld, Xiaoqing Hu, Elena Labkovsky, John B. Meixner Jr., Michael R. Winograd Jan 2013

Review Of Recent Studies And Issues Regarding The P300-Based Complex Trial Protocol For Detection Of Concealed Information, J. Peter Rosenfeld, Xiaoqing Hu, Elena Labkovsky, John B. Meixner Jr., Michael R. Winograd

Scholarly Works

In this review, the evolution of new P300-based protocols for detection of concealed information is summarized. The P300-based complex trial protocol (CTP) is described as one such countermeasure (CM)-resistant protocol. Recent lapses in diagnostic accuracy (from 90% to 75%) with CTPs applied to mock crime protocols are summarized, as well as recent enhancements to the CTP which have restored accuracy. These enhancements include 1) use of performance feedback during testing, 2) use of other ERP components such as N200 in diagnosis, 3) use of auxiliary tests, including the autobiographical implicit association test, as leading to restored diagnostic accuracy, and 4) …


Countermeasure Mechanisms In A P300-Based Concealed Information Test, John B. Meixner Jr., J. Peter Rosenfeld Jan 2010

Countermeasure Mechanisms In A P300-Based Concealed Information Test, John B. Meixner Jr., J. Peter Rosenfeld

Scholarly Works

The detection of deception has been the focus of much research in the past 20 years. Though much controversy has surrounded one deception detection protocol, the “Control Question Test” (NRC 2003, Ben-Shakhar 2002), an alternative test, the Guilty Knowledge Test (GKT), developed by Lykken (1959, 1960), is based on scientific principles and has been well-received in the scientific community. The GKT presents subjects with various stimuli, one of which is a guilty knowledge item (termed the probe, such as the gun used to commit a crime). The other stimuli in the test consist of control items that are of the …