Evidence suggesting superiority of visual (verbal) vs. auditory test presentation modality in the P300-based, Complex Trial Protocol for concealed autobiographical memory detection

• Published in: International journal of psychophysiology Vol. 96; no. 1; pp. 16 - 22
• Main Authors: Rosenfeld, J. Peter, Ward, Anne, Frigo, Vincent, Drapekin, Jesse, Labkovsky, Elena
• Format: Journal Article
• Language: English
• Published: Netherlands Elsevier B.V 01.04.2015
• Subjects: Acoustic Stimulation; Adult; Analysis of Variance; Brain - physiology; Concealed information tests; Credibility assessment; Electroencephalography; Event-related potentials; Event-Related Potentials, P300 - physiology; Female; Guilty knowledge tests; Humans; Lie detection; Male; Memory detection; Memory, Episodic; P300; Photic Stimulation; Psychophysics; Psychophysiological detection of deception; Reaction Time - physiology; Visual modality superiority; Young Adult; Credibility assessment; P300; Guilty knowledge tests; Event-related potentials; Concealed information tests; Lie detection; Psychophysiological detection of deception; Visual modality superiority; Memory detection
• ISSN: 0167-8760; 1872-7697; 1872-7697
• DOI: 10.1016/j.ijpsycho.2015.02.026

One group of participants received a series of city name stimuli presented on trials of the Complex Trial Protocol (CTP) version of a P300-based, concealed information test (CIT). Stimuli were presented on alternating trials in either auditory or visual presentation modality. In 1/7 of the trials the participant's home town (probe) repeatedly appeared in a series of 6 other (irrelevant) repeated city names. In both modalities, probe stimuli produced larger P300s than irrelevant stimuli. Visual stimuli produced shorter behavioral reaction times and P300 latencies, as well as larger P300 probe amplitudes, probe–irrelevant amplitude differences, and individual diagnostic accuracies than the same stimuli presented in the auditory modality. Possible reasons for these effects are discussed, and subject to discussed limitations, the applied conclusion reached is that in all CITs, visual presentation of stimuli, if feasible, should be preferentially used. •Visual, & auditory stimuli were compared within subjects in a P300-based CIT.•Visual stimuli produced faster behavioral reaction times and P300 latencies.•Visual stimuli produced larger probe–irrelevant P300 differences, and accuracy.•Visual presentation is recommended for all CITs, when feasible.