Combining the P300-complex trial-based Concealed Information Test and the reaction time-based autobiographical Implicit Association Test in concealed memory detection

Xiaoqing Hu*, J. Peter Rosenfeld

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

37 Scopus citations

Abstract

Despite the P300-Concealed Information Test's validity in detecting concealed memory when it is conducted immediately after the mock crime, whether the P300-CIT's detection efficiency is moderated by time delay remains unknown. Here, we conducted a mock crime study in which guilty participants were tested immediately after the mock crime or 1 month later. An innocent group was also tested. Assuming that the autobiographical Implicit Association Test (aIAT) and the P300-CIT rely on nonoverlapping mechanisms for memory detection, participants were tested using both the P300-CIT and the reaction time (RT)-based aIAT. Results suggested that the sensitivity of both tests remains even after the 1-month delay. The indicators from the RT-aIAT and P300-CIT were uncorrelated, thus combining P300-CIT and aIAT data further increased the efficiency of memory detection.

Original languageEnglish (US)
Pages (from-to)1090-1100
Number of pages11
JournalPsychophysiology
Volume49
Issue number8
DOIs
StatePublished - Aug 2012

Keywords

  • Autobiographical IAT
  • Complex trial protocol
  • Concealed Information Test
  • Event-related potentials
  • Implicit Association Test (IAT)
  • Mock crime
  • P300
  • Time delay

ASJC Scopus subject areas

  • Physiology
  • Neuropsychology and Physiological Psychology
  • Experimental and Cognitive Psychology
  • Physiology (medical)

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