Evidence suggesting superiority of visual (verbal) vs. auditory test presentation modality in the P300-based, Complex Trial Protocol for concealed autobiographical memory detection.
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.
Department of Psychology, Institute for Neuroscience, Northwestern University, Evanston, IL, USA.
J Peter
JP
Rosenfeld
Department of Psychology, Institute for Neuroscience, Northwestern University, Evanston, IL, USA.
Anne
A
Ward
Department of Psychology, Institute for Neuroscience, Northwestern University, Evanston, IL, USA.
Vincent
V
Frigo
Department of Psychology, Institute for Neuroscience, Northwestern University, Evanston, IL, USA.
Jesse
J
Drapekin
Department of Psychology, Institute for Neuroscience, Northwestern University, Evanston, IL, USA.
Elena
E
Labkovsky
D000161:Acoustic Stimulation; D000328:Adult; D000704:Analysis of Variance; D001921:Brain / Q000502:physiology*; D004569:Electroencephalography; D018913:Event-Related Potentials, P300 / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D061212:Memory, Episodic; D010775:Photic Stimulation; D011601:Psychophysics; D011930:Reaction Time / Q000502:physiology; D055815:Young Adult
Concealed information tests; Credibility assessment; Event-related potentials; Guilty knowledge tests; Lie detection; Memory detection; P300; Psychophysiological detection of deception; Visual modality superiority