An event-related potential paradigm for identifying (rare negative) attitude stimuli that people intentionally misreport.
This experiment explored whether a late positive potential (LPP) of the event-related brain potential is useful for examining attitudes that people attempt to conceal. Participants identified a set of liked, neutral, and disliked people and viewed sequences consisting of either names or pictures of these people. Disliked people appeared rarely among liked people, and participants either: (1) always accurately reported their negative attitudes toward the people; (2) misreported negative attitudes as positive when they saw a picture of a disliked person; or (3) misreported negative attitudes as positive when they saw a name of a disliked person. Rare negative stimuli evoked a larger-amplitude LPP than frequent positive stimuli. Misreporting attitudes significantly reduced the amplitude difference between rare negative and frequent positive stimuli, though it remained significant.
Department of Psychology, University of Texas at El Paso, El Paso, Texas 79968, USA. scrites@utep.edu
Stephen L
SL
Crites
Andrew J
AJ
Mojica
Guadalupe
G
Corral
Jennifer H
JH
Taylor
D000293:Adolescent; D000328:Adult; D001290:Attitude; D003627:Data Interpretation, Statistical; D008192:Deception; D004569:Electroencephalography; D004585:Electrooculography; D005071:Evoked Potentials / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010775:Photic Stimulation; D012931:Social Environment; D055815:Young Adult