Independent Processing of Stimulus-Stimulus and Stimulus-Response ConflictsReport as inadecuate




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The dimensional overlap DO model proposes distinct mechanisms for stimulus-stimulus S-S and stimulus-response S-R conflict effects. Many studies have examined the independence of S-S and S-R conflict effects in the color-word Stroop and Simon tasks. However, confounds exist between the distinction of DO i.e., S-S dimensional overlap compared with S-R dimensional overlap and the distinction of stimulus attributes e.g., color compared with spatial location; semantic compared with nonsemantic information, which may hinder interpretation of the independence of S-S and S-R conflicts. A spatial Stroop word task and a spatial Stroop arrow task were combined with a Simon task in Experiments 1 and 2, respectively to eliminate these confounds of stimulus attributes. The results showed that S-S and S-R conflicts affected performance additively. There was no significant correlation across participants. These findings lend further support to independent processing of S-S and S-R conflicts as it is outlined in the taxonomy of DO.



Author: Qi Li , Weizhi Nan, Kai Wang, Xun Liu

Source: http://plos.srce.hr/



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