Contingent attentional capture by top-down control settings: Converging evidence from event-related potentials.
نویسندگان
چکیده
منابع مشابه
Contingent attentional capture by top-down control settings: converging evidence from event-related potentials.
Theories of attentional control are divided over whether the capture of spatial attention depends primarily on stimulus salience or is contingent on attentional control settings induced by task demands. The authors addressed this issue using the N2-posterior- contralateral (N2pc) effect, a component of the event-related brain potential thought to reflect attentional allocation. They presented a...
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Previous studies have shown that spatial attention can be ‘‘captured’’ by irrelevant events, but only if the eliciting stimulus matches top-down attentional control settings. Here we explore whether similar principles hold for nonspatial attentional selection. Subjects searched for a coloured target letter embedded in an RSVP stream of letters inside a box centred on fixation. On critical trial...
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Theeuwes (2010) summarizes an impressive number of studies demonstrating interference by irrelevant visual singletons in computer experiments with humans. In these studies, if participants search for a relevant singleton target, such as the single diamond among circles (i.e., a shape singleton), an irrelevant singleton distractor, such as the single red circle among the green stimuli (i.e., a c...
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ژورنال
عنوان ژورنال: Journal of Experimental Psychology: Human Perception and Performance
سال: 2008
ISSN: 1939-1277,0096-1523
DOI: 10.1037/0096-1523.34.3.509