Article

Is "Blank" a suitable neutral prime for event-related potential experiments?

Department of Psychology, Tulane University, USA.
Brain and Language (impact factor: 3.12). 05/2006; 97(1):91-101. DOI:10.1016/j.bandl.2005.08.002
Source: PubMed

ABSTRACT We report an experiment that evaluates whether BLANK or an unrelated prime is a more suitable baseline for assessing priming for an ERP study. Sixteen subjects performed a lexical decision task with a 1 s prime-target stimulus onset asynchrony. Increased amplitude for the N400 was observed for targets in the unrelated prime condition whereas targets in the BLANK prime condition evoked activity that was more like that in the related prime condition. Theoretically, we conclude that the N400 reflects semantic integration. Pragmatically, we conclude that the BLANK prime is a better neutral prime but that unrelated primes yield stronger N400 effects.

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Keywords

1 s prime-target stimulus onset asynchrony
 
BLANK prime condition evoked activity
 
ERP study
 
lexical decision task
 
related prime condition
 
suitable baseline
 
unrelated prime
 
unrelated prime condition
 
unrelated primes yield stronger N400 effects