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.
Crites
Stephen L
SL
Department of Psychology, University of Texas at El Paso, El Paso, Texas 79968, USA. scrites@utep.edu
Mojica
Andrew J
AJ
Corral
Guadalupe
G
Taylor
Jennifer H
JH
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