Associative knowledge controls deployment of visual selective attention Export

@article{citeulike:2919656, abstract = {According to some models of visual selective attention, objects in a scene activate corresponding neural representations, which compete for perceptual awareness and motor behavior. During a visual search for a target object, top-down control exerted by working memory representations of the target's defining properties resolves competition in favor of the target. These models, however, ignore the existence of associative links among object representations. Here we show that such associations can strongly influence deployment of attention in humans. In the context of visual search, objects associated with the target were both recalled more often and recognized more accurately than unrelated distractors. Notably, both target and associated objects competitively weakened recognition of unrelated distractors and slowed responses to a luminance probe. Moreover, in a speeded search protocol, associated objects rendered search both slower and less accurate. Finally, the first saccades after onset of the stimulus array were more often directed toward associated than control items.}, address = {Department of Neurological and Vision Sciences, Section of Physiology, University of Verona, Strada Le Grazie 8, 37134 Verona, Italy.}, author = {Moores, Elisabeth and Laiti, Liana and Chelazzi, Leonardo}, citeulike-article-id = {2919656}, citeulike-linkout-0 = {http://dx.doi.org/10.1038/nn996}, citeulike-linkout-1 = {http://dx.doi.org/10.1038/nn996}, citeulike-linkout-2 = {http://view.ncbi.nlm.nih.gov/pubmed/12514738}, citeulike-linkout-3 = {http://www.hubmed.org/display.cgi?uids=12514738}, doi = {10.1038/nn996}, issn = {1097-6256}, journal = {Nat Neurosci}, keywords = {associative\_knowledge, attention, biased\_competition, competition, eye\_movements, priming, rsvp, semantic\_processing, vision}, month = {February}, number = {2}, pages = {182--189}, posted-at = {2009-08-15 19:27:13}, priority = {0}, title = {Associative knowledge controls deployment of visual selective attention}, url = {http://dx.doi.org/10.1038/nn996}, volume = {6}, year = {2003} }

TY - JOUR ID - citeulike:2919656 L3 - citeulike-article-id:2919656 N2 - According to some models of visual selective attention, objects in a scene activate corresponding neural representations, which compete for perceptual awareness and motor behavior. During a visual search for a target object, top-down control exerted by working memory representations of the target's defining properties resolves competition in favor of the target. These models, however, ignore the existence of associative links among object representations. Here we show that such associations can strongly influence deployment of attention in humans. In the context of visual search, objects associated with the target were both recalled more often and recognized more accurately than unrelated distractors. Notably, both target and associated objects competitively weakened recognition of unrelated distractors and slowed responses to a luminance probe. Moreover, in a speeded search protocol, associated objects rendered search both slower and less accurate. Finally, the first saccades after onset of the stimulus array were more often directed toward associated than control items. IS - 2 JF - Nat Neurosci SN - 1097-6256 AD - Department of Neurological and Vision Sciences, Section of Physiology, University of Verona, Strada Le Grazie 8, 37134 Verona, Italy. EP - 189 TI - Associative knowledge controls deployment of visual selective attention VL - 6 SP - 182 KW - associative_knowledge KW - attention KW - biased_competition KW - competition KW - eye_movements KW - priming KW - rsvp KW - semantic_processing KW - vision AU - Moores, Elisabeth AU - Laiti, Liana AU - Chelazzi, Leonardo PY - 2003/02// UR - http://dx.doi.org/10.1038/nn996 ER -