A masked priming ERP study of letter processing using single letters and false fonts

作者：Mura Priya; Coch Donna^*

来源：Cognitive Affective & Behavioral Neuroscience, 2009, 9(2): 216-228.

DOI：10.3758/CABN.9.2.216

Previous event-related potential (ERP) research on letter processing has suggested that a P 150 reflects lowlevel, featural processing, whereas a P260 reflects high-level, abstract letter processing. In order to investigate the specificity of these effects, ERPs were recorded in a masked priming paradigm using matching and nonmatching pairs of letters (e.g., (sic)-(sic), (sic)-(sic)) and false fonts (e.g., ). If the P 150 priming effect indexes featural processing, there should be no effect of condition on the P 150, since the letters and false fonts shared visual features. If the P260 priming effect indexes the processing of abstract letter representations, it should be evident only in the letter condition. As was expected, the P150 priming effect was similar for letters and false fonts; however, the P260 priming effect was also similar between conditions. Thus, the P260 priming effect may not be sensitive to abstract letter processing per se, or such processing may be extremely abstract.

• 出版日期2009-6