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Nieuwenstein, Mark R.; Potter, Mary C.; Theeuwes, Jan – Journal of Experimental Psychology: Human Perception and Performance, 2009
When asked to identify 2 visual targets (T1 and T2 for the 1st and 2nd targets, respectively) embedded in a sequence of distractors, observers will often fail to identify T2 when it appears within 200-500 ms of T1--an effect called the "attentional blink". Recent work shows that attention does not blink when the task is to encode a…
Descriptors: Eye Movements, Identification, Observation, Visual Stimuli
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Mortier, Karen; Theeuwes, Jan; Starreveld, Peter – Journal of Experimental Psychology: Human Perception and Performance, 2005
In feature search tasks, uncertainty about the dimension on which targets differ from the nontargets hampers search performance relative to a situation in which this dimension is known in advance. Typically, these cross-dimensional costs are associated with less efficient guidance of attention to the target. In the present study, participants…
Descriptors: Visual Perception, Visual Stimuli, Cues, Attention