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- W2893559050 abstract "The multiple state theory of working memory suggests that representations held in working memory are separated into two states: a currently-relevant active representation and accessory memory items held for future use. While the characteristics and consequences of active versus accessory states have been the subject of several investigations, the exact neurocognitive mechanisms that move representations between the two states remain unclear. Of the two competing hypotheses, one suggests that inhibition is applied to keep a representation in an accessory state, while the other suggests that accessory representations simply receive less top-down cortical amplification than active representations, but are not subjected to inhibition. Here we capitalize on the different affective consequences for stimuli whose memory representations are subjected to inhibition (negative ratings) or active enhancement (positive ratings) to test these competing hypotheses. On each trial participants memorized four items and then were cued to focus on a single item within memory. They then completed either a visual search or an affective evaluation task. Search times were slower when a search distractor matched the colour of the active item but not when it matched the colour of the accessory item, replicating findings of a division in working memory whereby only active items guide attention. Also, accessory items were affectively devalued compared to baseline and active memory items. This finding of devaluation supports the hypothesis that inhibition is used to keep representations in an accessory state, and adds to past findings that similar mechanisms of attention and emotion govern prioritization in working memory and the prioritization of external stimuli. Meeting abstract presented at VSS 2018" @default.
- W2893559050 created "2018-10-05" @default.
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- W2893559050 date "2018-09-01" @default.
- W2893559050 modified "2023-09-25" @default.
- W2893559050 title "Using affective ratings to test competing hypotheses about differences in active and accessory states in visual working memory." @default.
- W2893559050 doi "https://doi.org/10.1167/18.10.687" @default.
- W2893559050 hasPublicationYear "2018" @default.
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