When similarity leads to sparing: probing mechanisms underlying the attentional blink |
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Authors: | Troy A. W. Visser Corinne Davis Jeneva L. Ohan |
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Affiliation: | (1) Psychology Department, University of British Columbia, Okanagan, 3333 University Way, Kelowna, BC, V1Y 1V7, Canada;(2) University of Melbourne, Melbourne, Australia |
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Abstract: | When two targets are embedded in a temporal stream of distractors, second-target identification is initially impaired and then gradually improves as inter-target interval lengthens (attentional blink; AB). Notably, in about half of the published studies, this deficit is partially ameliorated when the targets follow one another directly, a condition known as “lag-1 sparing”. Here, we probe the impact of target-distractor similarity on lag-1 sparing, with the surprising finding that while high similarity impairs second-target accuracy at all subsequent lags, it actually improves accuracy when the targets follow one another directly. We suggest that this improvement reflects the positive influence of over-committing resources to target processing in the AB. |
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