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The interaction between surface color and color knowledge: behavioral and electrophysiological evidence

2012Journal article Restricted access
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dc.contributor.authorBramão, Inês
dc.contributor.authorFaísca, Luís
dc.contributor.authorForkstam, Christian
dc.contributor.authorInácio, Filomena
dc.contributor.authorAraújo, Susana
dc.contributor.authorPetersson, Karl Magnus
dc.contributor.authorReis, Alexandra
dc.date.accessioned2014-07-30T14:33:27Z
dc.date.available2014-07-30T14:33:27Z
dc.date.issued2012
dc.date.updated2014-07-30T10:24:39Z
dc.description.abstractIn this study, we used event-related potentials (ERPs) to evaluate the contribution of surface color and color knowledge information in object identification. We constructed two color-object verification tasks – a surface and a knowledge verification task – using high color diagnostic objects; both typical and atypical color versions of the same object were presented. Continuous electroencephalogram was recorded from 26 subjects. A cluster randomization procedure was used to explore the differences between typical and atypical color objects in each task. In the color knowledge task, we found two significant clusters that were consistent with the N350 and late positive complex (LPC) effects. Atypical color objects elicited more negative ERPs compared to typical color objects. The color effect found in the N350 time window suggests that surface color is an important cue that facilitates the selection of a stored object representation from long-term memory. Moreover, the observed LPC effect suggests that surface color activates associated semantic knowledge about the object, including color knowledge representations. We did not find any significant differences between typical and atypical color objects in the surface color verification task, which indicates that there is little contribution of color knowledge to resolve the surface color verification. Our main results suggest that surface color is an important visual cue that triggers color knowledge, thereby facilitating object identification.por
dc.identifier.citationBramao, Ines; Faísca, Luís; Forkstam, Christian; Inacio, Filomena; Araujo, Susana; Petersson, Karl Magnus; Reis, Alexandra. The interaction between surface color and color knowledge: Behavioral and electrophysiological evidence, Brain and Cognition, 78, 1, 28-37, 2012.por
dc.identifier.doihttp://dx.doi.org/10.1016/j.bandc.2011.10.004
dc.identifier.issn0278-2626
dc.identifier.otherAUT: LFA00717; AIR01687; KMP02316; MIB02287;
dc.identifier.urihttp://hdl.handle.net/10400.1/4868
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherElsevierpor
dc.relation.publisherversionhttp://www.sciencedirect.com/science/article/pii/S027826261100193Xpor
dc.subjectERPspor
dc.subjectObject identificationpor
dc.subjectSurface colorpor
dc.subjectColor knowledgepor
dc.subjectColor verificationpor
dc.titleThe interaction between surface color and color knowledge: behavioral and electrophysiological evidencepor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage37por
oaire.citation.issue1
oaire.citation.startPage28por
oaire.citation.titleBrain and Cognitionpor
oaire.citation.volume78por
person.familyNameBramão
person.familyNameFaísca
person.familyNameInácio
person.familyNameAraújo
person.familyNamePetersson
person.familyNameReis
person.givenNameInês
person.givenNameLuís
person.givenNameFilomena
person.givenNameSusana
person.givenNameKarl Magnus
person.givenNameAlexandra
person.identifierA-4633-2013
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person.identifier.orcid0000-0002-5593-6610
person.identifier.orcid0000-0003-4859-8817
person.identifier.orcid0000-0003-4387-0578
person.identifier.orcid0000-0002-0354-3348
person.identifier.orcid0000-0002-8245-0392
person.identifier.orcid0000-0001-5598-0999
person.identifier.ridA-4440-2013
person.identifier.ridA-7424-2013
person.identifier.ridE-8188-2012
person.identifier.scopus-author-id16068281000
person.identifier.scopus-author-id6503944802
person.identifier.scopus-author-id37112275500
person.identifier.scopus-author-id36678827900
person.identifier.scopus-author-id7006470225
person.identifier.scopus-author-id7202574376
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
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