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dc.contributor.authorSzűcs, Den
dc.contributor.authorSoltész, Fen
dc.date.accessioned2017-03-14T10:15:37Z
dc.date.available2017-03-14T10:15:37Z
dc.date.issued2012-03-27en
dc.identifier.issn1471-2202
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/263077
dc.description.abstractBACKGROUND: Several conflict processing studies aimed to dissociate neuroimaging phenomena related to stimulus and response conflict processing. However, previous studies typically did not include a paradigm-independent measure of either stimulus or response conflict. Here we have combined electro-myography (EMG) with event-related brain potentials (ERPs) in order to determine whether a particularly robust marker of conflict processing, the N450 ERP effect usually related to the activity of the Anterior Cingulate Cortex (ACC), is related to stimulus- or to response-conflict processing. EMG provided paradigm-independent measure of response conflict. In a numerical Stroop paradigm participants compared pairs of digits and pressed a button on the side where they saw the larger digit. 50% of digit-pairs were preceded by an effective cue which provided accurate information about the required response. 50% of trials were preceded by a neutral cue which did not communicate the side of response. RESULTS: EMG showed that response conflict was significantly larger in neutrally than in effectively cued trials. The N450 was similar when response conflict was high and when it was low. CONCLUSIONS: We conclude that the N450 is related to stimulus or abstract, rather than to response conflict detection/resolution. Findings may enable timing ACC conflict effects.
dc.description.sponsorshipThis research has been supported by a grant from the Medical Research Council (G90951).
dc.languageengen
dc.language.isoenen
dc.publisherBioMed Central
dc.rightsAttribution 4.0 Internationalen
dc.rightsAttribution 4.0 Internationalen
dc.rightsAttribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectconflict processingen
dc.subjectinterferenceen
dc.subjectsubthreshold response activationen
dc.subjectStroop effecten
dc.subjectanterior cingulate cortexen
dc.subjectnumerical distance effecten
dc.subjectnumerical cognitionen
dc.subjectERPen
dc.subjectEEGen
dc.titleFunctional definition of the N450 event-related brain potential marker of conflict processing: a numerical stroop studyen
dc.typeArticle
prism.number35en
prism.publicationDate2012en
prism.publicationNameBMC Neuroscienceen
prism.volume13en
dc.identifier.doi10.17863/CAM.8379
dcterms.dateAccepted2012-03-27en
rioxxterms.versionofrecord10.1186/1471-2202-13-35en
rioxxterms.versionVoRen
rioxxterms.licenseref.urihttp://creativecommons.org/licenses/by/4.0/en
rioxxterms.licenseref.startdate2012-03-27en
dc.identifier.eissn1471-2202
rioxxterms.typeJournal Article/Reviewen
pubs.funder-project-idMRC (G0900643)
pubs.funder-project-idMEDICAL RESEARCH COUNCIL (G0001354)
cam.issuedOnline2012-03-27en


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Attribution 4.0 International
Except where otherwise noted, this item's licence is described as Attribution 4.0 International