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Contrast and strength of visual memory and imagery differentially affect visual perception

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Saad, Elyana
dc.contributor.author Silvanto, Juha
dc.date.accessioned 2017-05-11T08:37:50Z
dc.date.available 2017-05-11T08:37:50Z
dc.date.issued 2013-12-20
dc.identifier.citation Saad , E & Silvanto , J 2013 , ' Contrast and strength of visual memory and imagery differentially affect visual perception ' , PloS one , vol. 8 , no. 12 , e84827 , pp. 1-9 . https://doi.org/10.1371/journal.pone.0084827 en
dc.identifier.issn 1932-6203
dc.identifier.other PURE UUID: 91b4e935-168c-4855-9cff-e843ab0bf36e
dc.identifier.other PURE ITEMURL: https://research.aalto.fi/en/publications/contrast-and-strength-of-visual-memory-and-imagery-differentially-affect-visual-perception(91b4e935-168c-4855-9cff-e843ab0bf36e).html
dc.identifier.other PURE LINK: http://www.scopus.com/inward/record.url?scp=84893203320&partnerID=8YFLogxK
dc.identifier.other PURE FILEURL: https://research.aalto.fi/files/12865219/journal.pone.0084827.pdf
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/25693
dc.description.abstract Visual short-term memory (VSTM) and visual imagery have been shown to modulate visual perception. However, how the subjective experience of VSTM/imagery and its contrast modulate this process has not been investigated. We addressed this issue by asking participants to detect brief masked targets while they were engaged either in VSTM or visual imagery. Subjective experience of memory/imagery (strength scale), and the visual contrast of the memory/mental image (contrast scale) were assessed on a trial-by-trial basis. For both VSTM and imagery, contrast of the memory/mental image was positively associated with reporting target presence. Consequently, at the sensory level, both VSTM and imagery facilitated visual perception. However, subjective strength of VSTM was positively associated with visual detection whereas the opposite pattern was found for imagery. Thus the relationship between subjective strength of memory/imagery and visual detection are qualitatively different for VSTM and visual imagery, although their impact at the sensory level appears similar. Our results furthermore demonstrate that imagery and VSTM are partly dissociable processes. en
dc.format.extent 1-9
dc.format.mimetype application/pdf
dc.language.iso en en
dc.relation.ispartofseries PLOS ONE en
dc.relation.ispartofseries Volume 8, issue 12 en
dc.rights openAccess en
dc.title Contrast and strength of visual memory and imagery differentially affect visual perception en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department O.V.Lounasmaa-laboratorio
dc.contributor.department Department of Neuroscience and Biomedical Engineering en
dc.identifier.urn URN:NBN:fi:aalto-201705114077
dc.identifier.doi 10.1371/journal.pone.0084827
dc.type.version publishedVersion

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