Detection of simulated malingering using forced choice recognition enhanced with event-related potential recording

J. P. Rosenfeld*, Jerry J. Sweet, James Chuang, Joel Ellwanger, Linda Song

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

32 Scopus citations

Abstract

A modified forced-choice procedure (HFCP) based on that of Hiscock and Hiscock (1989) for use with suspected malingerers is described. The major modification involves recording of the P300 event-related brain potential in response to the screen to which the subject responds. This 'probe' screen is, in turn, modified to contain either a match or a mismatch to the initial sample number, as opposed to having the subject choose the match from a pair of stimuli (match and mismatch) which are simultaneously presented in the standard HFCP. The P300 recording procedure necessitated this change, which also forces the subject to say 'yes' or 'no' (to match and mismatch, respectively), rather than choosing the match. We found that behavioral performance on the standard HFCP correlated highly and significantly with performance on the P300-enhanced HFCP. Three variants of the modified HFCP were explored. In all variants, P300 amplitude was significantly larger to the match than to the mismatch in standard group statistical tests. In the best variant, more than 70% of the simulators' match P300s were significantly greater (on tests within each individual) than the mismatch P300s.

Original languageEnglish (US)
Pages (from-to)163-179
Number of pages17
JournalClinical Neuropsychologist
Volume10
Issue number2
DOIs
StatePublished - 1996

ASJC Scopus subject areas

  • Neuropsychology and Physiological Psychology
  • Developmental and Educational Psychology
  • Clinical Psychology
  • Arts and Humanities (miscellaneous)
  • Psychiatry and Mental health

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