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Science 13 February 2009:
Vol. 323. no. 5916, p. 877
DOI: 10.1126/science.1166478
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Technical Comments

Comment on "Dynamic Shifts of Limited Working Memory Resources in Human Vision"

Nelson Cowan* and Jeffrey N. Rouder

Bays and Husain (Reports, 8 August 2008, p. 851) reported that human working memory, the limited information currently in mind, reflects resources distributed across all items in an array. In an alternative interpretation, memory is limited to several well-represented items. We argue that this item-limit model fits the extant data better than the distributed-resources model and is more interpretable theoretically.

Department of Psychological Sciences, University of Missouri, Columbia, MO 65211, USA.

* To whom correspondence should be addressed. E-mail: CowanN{at}missouri.edu

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Science. ISSN 0036-8075 (print), 1095-9203 (online)