Mock crime application of the Complex Trial Protocol (CTP) P300-based concealed information test

Michael R. Winograd*, J. Peter Rosenfeld

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

32 Scopus citations

Abstract

The Complex Trial Protocol (CTP), was shown to be an improvement over the previous "three stimulus" P300-based concealed information tests (CITs). Not only was it highly accurate with autobiographical information but was also resistant to the use of countermeasures (CMs). The current study applied the CTP to the detection of incidentally acquired information in a mock crime scenario. In previous "three stimulus" mock crime studies utilizing P300-based CITs, participants memorized a guilty knowledge item(s). Special care was taken in the current study to ensure that participants' knowledge of the guilty item in the mock crime was obtained only during the commission of the act in order to bolster ecological validity. Overall, 92% of all participants in guilty, innocent, and countermeasure conditions were correctly classified. CM use was again indexed by reaction times (RTs).

Original languageEnglish (US)
Pages (from-to)155-161
Number of pages7
JournalPsychophysiology
Volume48
Issue number2
DOIs
StatePublished - Feb 2011

Keywords

  • CIT
  • Complex Trial Protocol
  • Concealed information test
  • Deception
  • Mock crime
  • P300

ASJC Scopus subject areas

  • Neuroscience(all)
  • Neuropsychology and Physiological Psychology
  • Experimental and Cognitive Psychology
  • Neurology
  • Endocrine and Autonomic Systems
  • Developmental Neuroscience
  • Cognitive Neuroscience
  • Biological Psychiatry

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