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Applications Of Neuroscience In Criminal Law: Legal And Methodological Issues, John B. Meixner Jr.

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The use of neuroscience in criminal law applications is an increasingly discussed topic among legal and psychological scholars. Over the past 5 years, several prominent federal criminal cases have referenced neuroscience studies and made admissibility determinations regarding neuroscience evidence. Despite this growth, the field is exceptionally young, and no one knows for sure how significant of a contribution neuroscience will make to criminal law. This article focuses on three major subfields: (1) neuroscience-based credibility assessment, which seeks to detect lies or knowledge associated with a crime; (2) application of neuroscience to aid in assessments of brain capacity for culpability, especially …

P900: A Putative Novel Erp Component That Indexes Counter-Measure Use In The P300-Based Concealed Information Test, John B. Meixner Jr., Elena Labkovsky, J. Peter Rosenfeld, Michael R. Winograd, Michael Winograd, Alexander Sokolovsky, Jeff Weishaar, Tim Ullmann

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Countermeasures pose a serious threat to the effectiveness of the Concealed Information Test (CIT). In a CIT experiment, Rosenfeld and Labkovsky in Psychophysiology 47(6):1002–1010, (2010) observed a previously unknown positive ERP component at about 900 ms poststimulus at Fz and Cz that could potentially serve as an index of countermeasure use. Here, we explored the hypothesis that this component, termed P900, occurs in response to a signal that no further specific response is required in a trial, and could thus appear in countermeasure users that respond differentially depending on the stimulus that appears. In the present experiments, subjects viewed four …

A Novel Countermeasure Against The Reaction Time Index Of Countermeasure Use In The P300-Based Complex Trial Protocol For Detection Of Concealed Information, Alexander Sokolovsky, Jessica Rothenberg, Elena Labkovsky, John B. Meixner Jr., J. Peter Rosenfeld

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A P300 deception detection protocol was tested using simultaneous versus serial countermeasures and stimulus acknowledgment responses. Previously, P300 showed recognition and elevated reaction time identified countermeasure use. Probe-irrelevant P300 differences were significant in both countermeasure groups and control group. Detection rates were 11/12 for controls, 10/12 for serial countermeasure users, and 11/13 for simultaneous countermeasure users. Reaction time detected countermeasure use in serial responders, but not simultaneous responders. The simultaneous response reaction times were indistinguishable from controls.

Assigned Versus Random Countermeasure-Like Responses In The P300-Based Complex Trial Protocol For Detection Of Deception: Task Demand Effects, John B. Meixner Jr., Alexander Haynes, Michael Winograd, Jordan Brown, J. Peter Rosenfeld

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The Concealed Information Test (CIT) is a credibility assessment protocol of an entirely different nature than the traditional lie detector test. Instead of attempting to detect actual lying (the goal of the commonly used Control Question Test), the goal of the CIT is to determine whether an individual possesses knowledge of specific details of a crime or event. For example, if a murder was committed at 800 Church Avenue using a .38 caliber revolver, the CIT seeks to determine whether a suspect recognizes the address and type of weapon.

The CIT presents subjects with various stimuli, one of which is …