Abstract
Identification of the second of two brief targets is impaired at intertarget lags of less than about 500 msec. We compared two accounts of thisattentional blink (AB) by manipulating the number of digit distractors—and hence the lag—inserted among three letter targets in a rapid serial visual presentation stream of digit distractors. On the resource-depletion hypothesis, longer lags provide more time for processing the leading target, thus releasing resources for the trailing target. On the temporary-loss-of-control (TLC) hypothesis, intervening distractors disrupt the current attentional set, producing a trailing-target deficit. Identification accuracy for trailing targets was unimpaired not only at lag 1 (conventional lag 1 sparing) but also at later lags, if preceded by another target. The results supported the TLC hypothesis but not the resource-depletion hypothesis. We conclude that the AB is caused by a disruption in attentional set when a distractor is presented while the central executive is busy processing a leading target.
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This work was supported by grants from the Japan Society for the Promotion of Science to J.-I.K. and from the Natural Sciences and Engineering Research Council of Canada to V.D.L.
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Kawahara, JI., Kumada, T. & di Lollo, V. The attentional blink is governed by a temporary loss of control. Psychonomic Bulletin & Review 13, 886–890 (2006). https://doi.org/10.3758/BF03194014
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DOI: https://doi.org/10.3758/BF03194014