Quick minds slowed down: effects of rotation and stimulus category on the attentional blink |
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Authors: | Martens Sander Korucuoglu Ozlem Smid Henderikus G O M Nieuwenstein Mark R |
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Institution: | Neuroimaging Center, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands. s.martens@med.umcg.nl |
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Abstract: | BackgroundMost people show a remarkable deficit to report the second of two targets when presented in close temporal succession, reflecting an attentional restriction known as the ‘attentional blink’ (AB). However, there are large individual differences in the magnitude of the effect, with some people showing no such attentional restrictions.Methodology/Principal FindingsHere we present behavioral and electrophysiological evidence suggesting that these ‘non-blinkers’ can use alphanumeric category information to select targets at an early processing stage. When such information was unavailable and target selection could only be based on information that is processed relatively late (rotation), even non-blinkers show a substantial AB. Electrophysiologically, in non-blinkers this resulted in enhanced distractor-related prefrontal brain activity, as well as delayed target-related occipito-parietal activity (P3).Conclusion/SignificanceThese findings shed new light on possible strategic mechanisms that may underlie individual differences in AB magnitude and provide intriguing clues as to how temporal restrictions as reflected in the AB can be overcome. |
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