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dc.date.accessioned2021-02-19T20:29:27Z
dc.date.available2021-02-19T20:29:27Z
dc.date.created2020-11-12T11:33:08Z
dc.date.issued2020
dc.identifier.citationPuszta, Andras Pertich, Akos Giricz, Zsófia Nyujtó, Diána Bodosi, Balázs Eördegh, Gabriella Nagy, Attila . Predicting stimulus modality and working memory load during visual- and audiovisual-acquired equivalence learning. Frontiers in Human Neuroscience. 2020, 14:569142, 1-11
dc.identifier.urihttp://hdl.handle.net/10852/83445
dc.description.abstractScholars have extensively studied the electroencephalography (EEG) correlates of associative working memory (WM) load. However, the effect of stimulus modality on EEG patterns within this process is less understood. To fill this research gap, the present study re-analyzed EEG datasets recorded during visual and audiovisual equivalence learning tasks from earlier studies. The number of associations required to be maintained (WM load) in WM was increased using the staircase method during the acquisition phase of the tasks. The support vector machine algorithm was employed to predict WM load and stimulus modality using the power, phase connectivity, and cross-frequency coupling (CFC) values obtained during time segments with different WM loads in the visual and audiovisual tasks. A high accuracy (>90%) in predicting stimulus modality based on power spectral density and from the theta–beta CFC was observed. However, accuracy in predicting WM load was higher (≥75% accuracy) than that in predicting stimulus modality (which was at chance level) using theta and alpha phase connectivity. Under low WM load conditions, this connectivity was highest between the frontal and parieto-occipital channels. The results validated our findings from earlier studies that dissociated stimulus modality based on power-spectra and CFC during equivalence learning. Furthermore, the results emphasized the importance of alpha and theta frontoparietal connectivity in WM load.
dc.languageEN
dc.rightsAttribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titlePredicting stimulus modality and working memory load during visual- and audiovisual-acquired equivalence learning
dc.typeJournal article
dc.creator.authorPuszta, Andras
dc.creator.authorPertich, Akos
dc.creator.authorGiricz, Zsófia
dc.creator.authorNyujtó, Diána
dc.creator.authorBodosi, Balázs
dc.creator.authorEördegh, Gabriella
dc.creator.authorNagy, Attila
cristin.unitcode185,17,5,0
cristin.unitnamePsykologisk institutt
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1
dc.identifier.cristin1847339
dc.identifier.bibliographiccitationinfo:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Frontiers in Human Neuroscience&rft.volume=14:569142&rft.spage=1&rft.date=2020
dc.identifier.jtitleFrontiers in Human Neuroscience
dc.identifier.volume14
dc.identifier.doihttps://doi.org/10.3389/fnhum.2020.569142
dc.identifier.urnURN:NBN:no-86188
dc.type.documentTidsskriftartikkel
dc.type.peerreviewedPeer reviewed
dc.source.issn1662-5161
dc.identifier.fulltextFulltext https://www.duo.uio.no/bitstream/handle/10852/83445/2/fnhum-14-569142%2B%25281%2529.pdf
dc.type.versionPublishedVersion
cristin.articleid569142


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