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dc.contributor.authorJefferies, Lisa N
dc.contributor.authorEnns, James T
dc.contributor.authorDi Lollo, Vincent
dc.date.accessioned2019-02-21T23:51:42Z
dc.date.available2019-02-21T23:51:42Z
dc.date.issued2014
dc.identifier.issn0096-1523
dc.identifier.doi10.1037/a0034734
dc.identifier.urihttp://hdl.handle.net/10072/173492
dc.description.abstractThe distribution of visual attention has been the topic of much investigation, and various theories have posited that attention is allocated either as a single unitary focus or as multiple independent foci. In the present experiment, we demonstrate that attention can be flexibly deployed as either a unitary or a divided focus in the same experimental task, depending on the observer’s goals. To assess the distribution of attention, we used a dual-stream Attentional Blink (AB) paradigm and 2 target pairs. One component of the AB, Lag-1 sparing, occurs only if the second target pair appears within the focus of attention. By varying whether the first-target-pair could be expected in a predictable location (always in-stream) or not (unpredictably in-stream or between-streams), observers were encouraged to deploy a divided or a unitary focus, respectively. When the second-target-pair appeared between the streams, Lag-1 sparing occurred for the Unpredictable group (consistent with a unitary focus) but not for the Predictable group (consistent with a divided focus). Thus, diametrically different outcomes occurred for physically identical displays, depending on the expectations of the observer about where spatial attention would be required. (PsycINFO Database Record (c) 2016 APA, all rights reserved)
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherAmerican Psychological Association
dc.relation.ispartofpagefrom465
dc.relation.ispartofpageto470
dc.relation.ispartofissue2
dc.relation.ispartofjournalJournal of Experimental Psychology: Human Perception and Performance
dc.relation.ispartofvolume40
dc.subject.fieldofresearchSensory processes, perception and performance
dc.subject.fieldofresearchCognitive and computational psychology
dc.subject.fieldofresearchcode520406
dc.subject.fieldofresearchcode5204
dc.titleThe flexible focus: Whether spatial attention is unitary or divided depends on observer goals
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
dc.description.versionAccepted Manuscript (AM)
gro.rights.copyright© 2014 American Psycological Association. This article may not exactly replicate the final version published in the APA journal. It is not the copy of record. Reproduced here in accordance with publisher policy. Please refer to the journal link for access to the definitive, published version.
gro.hasfulltextFull Text
gro.griffith.authorJefferies, Lisa


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