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dc.contributor.authorBrady, Timothy F.
dc.contributor.authorKonkle, Talia
dc.contributor.authorAlvarez, George
dc.date.accessioned2019-09-18T15:45:07Z
dc.date.issued2009
dc.identifier.citationBrady, Timothy F., Talia Konkle, and George Alvarez. 2009. Compression in visual working memory: Using statistical regularities to form more efficient memory representations. Journal of Experimental Psychology: General 138 (4): 487-502. doi: 10.1037/a0016797.en_US
dc.identifier.issn1939-2222en_US
dc.identifier.issn0096-3445en_US
dc.identifier.urihttp://nrs.harvard.edu/urn-3:HUL.InstRepos:41377373*
dc.description.abstractThe information that individuals can hold in working memory is quite limited, but researchers have typically studied this capacity using simple objects or letter strings with no associations between them. However, in the real world there are strong associations and regularities in the input. In an information theoretic sense, regularities introduce redundancies that make the input more compressible. The current study shows that observers can take advantage of these redundancies, enabling them to remember more items in working memory. In 2 experiments, covariance was introduced between colors in a display so that over trials some color pairs were more likely to appear than other color pairs. Observers remembered more items from these displays than from displays where the colors were paired randomly. The improved memory performance cannot be explained by simply guessing the high-probability color pair, suggesting that observers formed more efficient representations to remember more items. Further, as observers learned the regularities, their working memory performance improved in a way that is quantitatively predicted by a Bayesian learning model and optimal encoding scheme. These results suggest that the underlying capacity of the individuals’ working memory is unchanged, but the information they have to remember can be encoded in a more compressed fashion.en_US
dc.description.sponsorshipPsychologyen_US
dc.language.isoen_USen_US
dc.publisherAmerican Psychological Association (APA)en_US
dash.licenseMETA_ONLY
dc.subjectExperimental and Cognitive Psychologyen_US
dc.subjectDevelopmental Neuroscienceen_US
dc.subjectGeneral Psychologyen_US
dc.titleCompression in visual working memory: Using statistical regularities to form more efficient memory representations.en_US
dc.typeJournal Articleen_US
dc.description.versionVersion of Recorden_US
dc.relation.journalJournal of Experimental Psychology: Generalen_US
dash.depositing.authorAlvarez, George
dc.date.available2019-09-18T15:45:07Z
dash.affiliation.otherFaculty of Arts & Sciencesen_US
dc.identifier.doi10.1037/a0016797
dc.source.journalJournal of Experimental Psychology: General
dash.source.volume138;4
dash.source.page487-502
dash.contributor.affiliatedAlvarez, George


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