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Repetition blindness (RB) refers to the failure to detect both occurrences of an item when that item is presented twice (Kanwisher, 1987). What happens when more than two items are presented, specifically, what happens when items are presented in groups of three? Four experiments were conducted wherein groups of letters and words were presented sequentially and simultaneously and reaction times on a judgment of frequency response, which allows for determination of participant strategy, was collected. Results indicated that when items are presented sequentially, RB and an item enumeration strategy are observed. When items are presented simultaneously, however, it appears as though a mix of strategies is used. Specifically, those who exhibited greater accuracy at detecting the group of three items had faster reaction times, suggesting a familiarity-based strategy and those who exhibited RB for the group had slower reactions, suggesting an item enumeration strategy.
Jackson, Andrea M., ""Survival of the Grouped" or Three's a Crowd? Repetition Blindness in Groups of Letters and Words" (2013). Electronic Theses and Dissertations. 4861.