Competition in visual working memory for control of search Export

@article{citeulike:2923057, abstract = {Recent perspectives on selective attention posit a central role for visual working memory (VWM) in the top-down control of attention. According to the biased-competition model (Desimone \& Duncan, 1995), active maintenance of an object in VWM gives matching (Downing, 2000) or related (Moores, Laiti, \& Chelazzi, 2003) objects in the environment a competitive advantage over other objects in gaining access to limited processing resources. Participants in this study performed a visual search task while simultaneously maintaining a second item in VWM. On half of the trials, this item appeared as a distractor item in the search array. We found no evidence that this item interferes with successful selection of the search target, as measured with response time in a target detection task and accuracy in a target discrimination task. These results are consistent with two general models: One in which a representation of the current task biases the competition between items in a unitary VWM, or one in which VWM is fractionated to allow for maintenance of critical items that are not immediately relevant to the task.}, author = {Downing, Paul and Dodds, Chris}, citeulike-article-id = {2923057}, citeulike-linkout-0 = {http://dx.doi.org/10.1080/13506280344000446}, citeulike-linkout-1 = {http://www.ingentaconnect.com/content/psych/pvis/2004/00000011/00000006/art00002}, doi = {10.1080/13506280344000446}, issn = {1350-6285}, journal = {Visual Cognition}, keywords = {memory, search, working}, month = {August}, pages = {689--703}, posted-at = {2008-08-29 19:42:49}, priority = {0}, publisher = {Psychology Press, part of the Taylor \& Francis Group}, title = {Competition in visual working memory for control of search}, url = {http://dx.doi.org/10.1080/13506280344000446}, year = {2004} }

TY - JOUR ID - citeulike:2923057 L3 - citeulike-article-id:2923057 N2 - Recent perspectives on selective attention posit a central role for visual working memory (VWM) in the top-down control of attention. According to the biased-competition model (Desimone & Duncan, 1995), active maintenance of an object in VWM gives matching (Downing, 2000) or related (Moores, Laiti, & Chelazzi, 2003) objects in the environment a competitive advantage over other objects in gaining access to limited processing resources. Participants in this study performed a visual search task while simultaneously maintaining a second item in VWM. On half of the trials, this item appeared as a distractor item in the search array. We found no evidence that this item interferes with successful selection of the search target, as measured with response time in a target detection task and accuracy in a target discrimination task. These results are consistent with two general models: One in which a representation of the current task biases the competition between items in a unitary VWM, or one in which VWM is fractionated to allow for maintenance of critical items that are not immediately relevant to the task. JF - Visual Cognition SN - 1350-6285 EP - 703 TI - Competition in visual working memory for control of search PB - Psychology Press, part of the Taylor & Francis Group SP - 689 KW - memory KW - search KW - working AU - Downing, Paul AU - Dodds, Chris PY - 2004/08// UR - http://dx.doi.org/10.1080/13506280344000446 ER -