THE WAY IRRELEVANT DIMENSIONS ARE PROCESSED DEPENDS ON WHAT THEY OVERLAP WITH - THE CASE OF STROOP-LIKE AND SIMON-LIKE STIMULI

According to the dimensional-overlap model (Kornblum, 1992), irrelevan t dimensions that overlap with a stimulus dimension (e.g., Stroop-type stimuli) are processed by a different stage than those that overlap w ith the response (e.g., Simon-type stimuli). We show that the effects of these two types of overlap are additive, thus supporting the model' s hypothesis. We also show that the time course of facilitation and in terference is different for these two types of overlap.