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  • Title: Individual differences in working memory capacity predict visual attention allocation.
    Author: Bleckley MK, Durso FT, Crutchfield JM, Engle RW, Khanna MM.
    Journal: Psychon Bull Rev; 2003 Dec; 10(4):884-9. PubMed ID: 15000535.
    Abstract:
    To the extent that individual differences in working memory capacity (WMC) reflect differences in attention (Baddeley, 1993; Engle, Kane, & Tuholski, 1999), differences in WMC should predict performance on visual attention tasks. Individuals who scored in the upper and lower quartiles on the OSPAN working memory test performed a modification of Egly and Homa's (1984) selective attention task. In this task, the participants identified a central letter and localized a displaced letter flashed somewhere on one of three concentric rings. When the displaced letter occurred closer to fixation than the cue implied, high-WMC, but not low-WMC, individuals showed a cost in the letter localization task. This suggests that low-WMC participants allocated attention as a spotlight, whereas those with high WMC showed flexible allocation.
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