注意抑制的脑电成分PD.pdfVIP

See discussions, stats, and author profiles for this publication at: /publication Active suppression of distractors that match the contents of visual working memory ARTICLE in ISUAL COGNITION · AUGUST 2011 Impact Factor: 2.05 · DOI: 10.10802011.603709 · Source: PubMed CITATIONS DOWNLOADS IEWS 18 145 142 2 AUTHORS, INCLUDING: Steven J Luck University of California, Davis 213 PUBLICATIONS 16,754 CITATIONS SEE PROFILE Available from: Steven J Luck Retrieved on: 15 August 2015 VISUAL COGNITION, 2011, 19 (7), 956972 Active suppression of distractors that match the contents of visual working memory Risa Sawaki and Steven J. Luck 1 1 0 University of California, Davis, CA, USA 2 r e b o t c O The biased competition theory proposes that items matching the contents of visual 5 working memory will automatically have an advantage in the competition for 0 5 attention. However, evidence for an automatic effect has been mixed, perhaps 3 because the memory-driven attentional bias can be overcome by top-down : 6 1 suppression. To test this hypothesis, the Pd component of the event-related t potential waveform was used as a marker of attentional suppression. While a ] observers maintained a colour in working memory, task-irrelevant probe arrays s i v were presented that contained an item matching the colour being held in memory. a D We found that th