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Disentangling stimulus plausibility and contextual congruency: Electrophysiological evidence for differential cognitive dynamics

2017-02Journal article Open access
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dc.contributor.authorCoco, Moreno I.
dc.contributor.authorAraujo, Susana
dc.contributor.authorPetersson, Karl Magnus
dc.date.accessioned2018-12-07T14:52:56Z
dc.date.available2018-12-07T14:52:56Z
dc.date.issued2017-02
dc.description.abstractExpectancy mechanisms are routinely used by the cognitive system in stimulus processing and in anticipation of appropriate responses. Electrophysiology research has documented negative shifts of brain activity when expectancies are violated within a local stimulus context (e.g., reading an implausible word in a sentence) or more globally between consecutive stimuli (e.g., a narrative of images with an incongruent end). In this EEG study, we examine the interaction between expectancies operating at the level of stimulus plausibility and at more global level of contextual congruency to provide evidence for, or against, a disassociation of the underlying processing mechanisms. We asked participants to verify the congruency of pairs of cross-modal stimuli (a sentence and a scene), which varied in plausibility. ANOVAs on ERP amplitudes in selected windows of interest show that congruency violation has longer-lasting (from 100 to 500 ms) and more widespread effects than plausibility violation (from 200 to 400 ms). We also observed critical interactions between these factors, whereby incongruent and implausible pairs elicited stronger negative shifts than their congruent counterpart, both early on (100-200 ms) and between 400-500 ms. Our results suggest that the integration mechanisms are sensitive to both global and local effects of expectancy in a modality independent manner. Overall, we provide novel insights into the interdependence of expectancy during meaning integration of cross-modal stimuli in a verification task.
dc.description.sponsorshipFundacao para a Ciencia e Tecnologia [SFRH/BPD/88374/2012, PTDC/PSI-PCO/110734/2009, UID/BIM/04773/2013 CBMR 1334, PEst-OE/EQB/LA0023/2013, UID/PSI/00050/2013]; Leverhulme Trust [ECF-2014-205]; Max Planck Institute for Psycholinguistics; Donders Institute for Brain, Cognition and Behaviour
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.doi10.1016/j.neuropsychologia.2016.12.008
dc.identifier.issn0028-3932
dc.identifier.issn1873-3514
dc.identifier.urihttp://hdl.handle.net/10400.1/11273
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectLanguage Comprehension
dc.subjectSemantic Integration
dc.subjectObject Identification
dc.subjectSentence Context
dc.subjectWord-Frequency
dc.subjectVisual-Cortex
dc.subjectScene Context
dc.subjectEye-Movements
dc.subjectSingle-Word
dc.subjectBrain
dc.titleDisentangling stimulus plausibility and contextual congruency: Electrophysiological evidence for differential cognitive dynamics
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage163
oaire.citation.startPage150
oaire.citation.titleNeuropsychologia
oaire.citation.volume96
person.familyNameAraújo
person.familyNamePetersson
person.givenNameSusana
person.givenNameKarl Magnus
person.identifier548901
person.identifier13089
person.identifier.ciencia-id6D14-B1D1-1532
person.identifier.orcid0000-0002-0354-3348
person.identifier.orcid0000-0002-8245-0392
person.identifier.ridA-7424-2013
person.identifier.ridE-8188-2012
person.identifier.scopus-author-id36678827900
person.identifier.scopus-author-id7006470225
rcaap.rightsopenAccess
rcaap.typearticle
relation.isAuthorOfPublication624902bb-0364-40ac-8ea4-3c0de3456818
relation.isAuthorOfPublication0f437ab3-c630-40ad-963f-13196ad4fbd6
relation.isAuthorOfPublication.latestForDiscovery0f437ab3-c630-40ad-963f-13196ad4fbd6

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