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Adding Distractors Improves Performance by Boosting Top - Down Control
Proceedings of the Annual Conference of the Cognitive Science Society
  • Ion Juvina, Wright State University - Main Campus
  • Niels A. Taatgen
Document Type
Conference Proceeding
Publication Date
1-1-2009
Catalog Record
Catalog Record
Abstract

The effect of adding -be-ignored extra stimuli to a modified Stroop task is investigated. Adding extra stimuli of the same kind as the distractor causes a temporary improvement in performance (Stroop dilution), whereas adding extra stimuli of the same kind as the target causes an improvement in performance that is only detectable when the extra stimuli are removed (post-treatment). An attempt is made to explain these different outcomes in light of the existing theoretical accounts of the Stroop dilution effect. A computational model that accounts for the observed data is proposed. Results suggest that a top-down control mechanism compensates for lateral inhibition effects, particularly when they have a potentially disruptive influence on performance. This boost of control seems to last longer than needed, causing performance improvements in a post treatment condition. A further implication of these results is that the top-down control.

Comments

Paper presented at The Annual Conference of the Cognitive Science Society, Amsterdam, The Netherlands, July 29-August 1, 2009. (acceptance rate 32%)

Citation Information
Ion Juvina and Niels A. Taatgen. "Adding Distractors Improves Performance by Boosting Top - Down Control" Proceedings of the Annual Conference of the Cognitive Science Society (2009) ISSN: 1069-7977
Available at: http://works.bepress.com/ion_juvina/24/