Attentional capture by masked colour singletons
- PMID: 20659496
- DOI: 10.1016/j.visres.2010.07.015
Attentional capture by masked colour singletons
Abstract
We tested under which conditions a colour singleton of which an observer is unaware captures attention. To prevent visual awareness of the colour singleton, we used backward masking. We find that a masked colour singleton cue captures attention if it matches the observer's goal to search for target colours but not if it is task-irrelevant. This is also reflected in event-related potentials to the visible target: the masked goal-matching cue elicits an attentional potential (N2pc) in a target search task. By contrast, a non-matching but equally strong masked colour singleton cue failed to elicit a capture effect and an N2pc. Results are discussed with regard to currently pertaining conceptions of attentional capture by colour singletons.
Copyright 2010 Elsevier Ltd. All rights reserved.
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