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dc.contributor.authorCarlson, Thomas A.
dc.contributor.authorAlvarez, George
dc.contributor.authorCavanagh, Patrick
dc.date.accessioned2020-07-10T16:56:15Z
dc.date.issued2007-08-02
dc.identifier.citationCarlson, Thomas A., George A. Alvarez, and Patrick Cavanagh. "Quadrantic Deficit Reveals Anatomical Constraints on Selection." Proceedings of the National Academy of Sciences 104, no. 33 (2007): 13496-13500.en_US
dc.identifier.issn0027-8424en_US
dc.identifier.issn1091-6490en_US
dc.identifier.urihttps://nrs.harvard.edu/URN-3:HUL.INSTREPOS:37363149*
dc.description.abstractOur conscious experience is of a seamless visual world, but many of the cortical areas that underlie our capacity for vision have a fragmented or asymmetrical representation of visual space. In fact, the representation of the visual field is fragmented into quadrants at the level of V2, V3, and possibly V4. In theory, this division could have no functional consequences and therefore no impact on behavior. Contrary to this expectation, we find robust quadrant- level interference effects when attentively tracking two moving targets. Performance improves when target objects appear in separate quadrants (straddling either the horizontal or vertical meridian) compared with when they appear the same distance apart but within a single quadrant. These quadrant-level interference effects would not be predicted by cognitive theories of attention and tracking that do not take anatomical constraints into account. Quadrant-level interference strongly suggests that cortical areas containing a noncontiguous representation of the four quadrants of the visual field (i.e., V2, V3, and V4) impose an important constraint on attentional selection and attentive tracking.en_US
dc.description.sponsorshipPsychologyen_US
dc.language.isoen_USen_US
dc.publisherProceedings of the National Academy of Sciencesen_US
dash.licenseMETA_ONLY
dc.subjectMultidisciplinaryen_US
dc.subjectattentional interferenceen_US
dc.subjectextrastriate cortexen_US
dc.subjectmultifocal attentionen_US
dc.subjectvisual attentionen_US
dc.titleQuadrantic deficit reveals anatomical constraints on selectionen_US
dc.typeJournal Articleen_US
dc.description.versionVersion of Recorden_US
dc.relation.journalProceedings of the National Academy of Sciencesen_US
dash.depositing.authorAlvarez, George
dc.date.available2020-07-10T16:56:15Z
dash.affiliation.otherFaculty of Arts & Sciencesen_US
dash.workflow.commentsIt seems like there is an extra page before the article starts that could be removed.en_US
dc.identifier.doi10.1073/pnas.0702685104
dc.source.journalProceedings of the National Academy of Sciences
dash.source.volume104;33
dash.source.page13496-13500
dash.contributor.affiliatedCavanagh, Patrick
dash.contributor.affiliatedAlvarez, George


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