منابع مشابه
Top-down contingent attentional capture during feed-forward visual processing.
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...
متن کاملContingent 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...
متن کاملTop-down control settings and the attentional blink: Evidence for nonspatial contingent capture
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...
متن کاملFollow the sign! Top-down contingent attentional capture of masked arrow cues
Arrow cues and other overlearned spatial symbols automatically orient attention according to their spatial meaning. This renders them similar to exogenous cues that occur at stimulus location. Exogenous cues trigger shifts of attention even when they are presented subliminally. Here, we investigate to what extent the mechanisms underlying the orienting of attention by exogenous cues and by arro...
متن کاملWhat is Bottom-Up and What is Top-Down in Predictive Coding?
Everyone knows what bottom-up is, and how it is different from top-down. At least one is tempted to think so, given that both terms are ubiquitously used, but only rarely defined in the psychology and neuroscience literature. In this review, we highlight the problems and limitations of our current understanding of bottom-up and top-down processes, and we propose a reformulation of this distinct...
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ژورنال
عنوان ژورنال: Attention, Perception, & Psychophysics
سال: 2010
ISSN: 1943-3921,1943-393X
DOI: 10.3758/app.72.2.326