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dc.contributor.authorAstikainen, Piia
dc.contributor.authorCong, Fengyu
dc.contributor.authorRistaniemi, Tapani
dc.contributor.authorHietanen, Jari K.
dc.date.accessioned2014-01-21T08:43:48Z
dc.date.available2014-01-21T08:43:48Z
dc.date.issued2013
dc.identifier.citationAstikainen, P., Cong, F., Ristaniemi, T., & Hietanen, J. K. (2013). Event-related potentials to unattended changes in facial expressions: detection of regularity violations or encoding of emotions?. <i>Frontiers in Human Neuroscience</i>, <i>7</i>. <a href="https://doi.org/10.3389/fnhum.2013.00557" target="_blank">https://doi.org/10.3389/fnhum.2013.00557</a>
dc.identifier.otherCONVID_22894380
dc.identifier.otherTUTKAID_58338
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/42833
dc.description.abstractVisual mismatch negativity (vMMN), a component in event-related potentials (ERPs), can be elicited when rarely presented “deviant” facial expressions violate regularity formed by repeated “standard” faces. vMMN is observed as differential ERPs elicited between the deviant and standard faces. It is not clear, however, whether differential ERPs to rare emotional faces interspersed with repeated neutral ones reflect true vMMN (i.e., detection of regularity violation) or merely encoding of the emotional content in the faces. Furthermore, a face-sensitive N170 response, which reflects structural encoding of facial features, can be modulated by emotional expressions. Owing to its similar latency and scalp topography with vMMN, these two components are difficult to separate. We recorded ERPs to neutral, fearful, and happy faces in two different stimulus presentation conditions in adult humans. For the oddball condition group, frequently presented neutral expressions (p = 0.8) were rarely replaced by happy or fearful expressions (p = 0.1), whereas for the equiprobable condition group, fearful, happy, and neutral expressions were presented with equal probability (p = 0.33). Independent component analysis (ICA) revealed two prominent components in both stimulus conditions in the relevant latency range and scalp location. A component peaking at 130 ms post stimulus showed a difference in scalp topography between the oddball (bilateral) and the equiprobable (right-dominant) conditions. The other component, peaking at 170 ms post stimulus, showed no difference between the conditions. The bilateral component at the 130-ms latency in the oddball condition conforms to vMMN. Moreover, it was distinct from N170 which was modulated by the emotional expression only. The present results suggest that future studies on vMMN to facial expressions should take into account possible confounding effects caused by the differential processing of the emotional expressions as such.fi
dc.language.isoeng
dc.publisherFrontiers
dc.relation.ispartofseriesFrontiers in Human Neuroscience
dc.subject.otherkasvonilmeet
dc.subject.othervisuaalinen poikkeavuusnegatiivisuus
dc.subject.otheritsenäisten komponenttien analyysi
dc.subject.otherequiprobable condition
dc.subject.otheroddball condition
dc.subject.othervisual mismatch negativity
dc.titleEvent-related potentials to unattended changes in facial expressions: detection of regularity violations or encoding of emotions?
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-201401141058
dc.contributor.laitosPsykologian laitosfi
dc.contributor.laitosTietotekniikan laitosfi
dc.contributor.laitosDepartment of Psychologyen
dc.contributor.laitosDepartment of Mathematical Information Technologyen
dc.contributor.oppiainePsykologiafi
dc.contributor.oppiainePsychologyen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.date.updated2014-01-14T04:30:53Z
dc.type.coarjournal article
dc.description.reviewstatuspeerReviewed
dc.relation.issn1662-5161
dc.relation.numberinseries-
dc.relation.volume7
dc.type.versionpublishedVersion
dc.rights.copyright© 2013 Astikainen, Cong, Ristaniemi and Hietanen. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
dc.rights.accesslevelopenAccessfi
dc.subject.ysoilmeet
dc.subject.ysoriippumattomien komponenttien analyysi
jyx.subject.urihttp://www.yso.fi/onto/yso/p7717
jyx.subject.urihttp://www.yso.fi/onto/yso/p38529
dc.rights.urlhttps://creativecommons.org/licenses/by/2.0/
dc.relation.doi10.3389/fnhum.2013.00557


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© 2013 Astikainen, Cong, Ristaniemi and Hietanen. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
Except where otherwise noted, this item's license is described as © 2013 Astikainen, Cong, Ristaniemi and Hietanen. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.