ISSN : 1226-9654
Negative repetition effects (NREs) have been reported that the accuracy of target identification is lowered when a target is flanked by the same distractor than when by alternative distractor in briefly exposed displays. Park (2013) used attention windows to indicate the positions of probable targets, and observed positive repetition effects (PREs) with distractors close to the target and NREs with distant distractors. This study investigated whether the above results could be replicated when allocation of attention is varied among attention windows. In Experiment 1, when the probability of target presentation is the same between the two centered attention windows, repetition of the same distractor to the target had no effect in identifying the target. However, when allocation of attention is biased toward one of the two attention windows in Experiment 2, in regard to the target presented in the less probable position, the distractor close to the target produced PRE and the distant distractor produced NRE. This result is hard to be explained by various existing hypotheses, and indicates that it is necessary to consider seriously the issue of attention shift between the target and distractors.
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