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dc.date.accessioned2019-12-16T07:23:58Z
dc.date.available2019-12-16T07:23:58Z
dc.date.created2019-07-02T19:44:18Z
dc.date.issued2019
dc.identifier.citationAmlien, Inge Kasbohm Sneve, Markus Handal Vidal-Pineiro, Didac Walhovd, Kristine B Fjell, Anders Martin . Elaboration Benefits Source Memory Encoding Through Centrality Change. Scientific Reports. 2019, 9(1), 1-13
dc.identifier.urihttp://hdl.handle.net/10852/71626
dc.description.abstractVariations in levels of processing affect memory encoding and subsequent retrieval performance, but it is unknown how processing depth affects communication patterns within the network of interconnected brain regions involved in episodic memory encoding. In 113 healthy adults scanned with functional MRI, we used graph theory to calculate centrality indices representing the brain regions’ relative importance in the memory network. We tested how communication patterns in 42 brain regions involved in episodic memory encoding changed as a function of processing depth, and how these changes were related to episodic memory ability. Centrality changes in right middle frontal gyrus, right inferior parietal lobule and left superior frontal gyrus were positively related to semantic elaboration during encoding. In the same regions, centrality during successful episodic memory encoding was related to performance on the episodic memory task, indicating that these centrality changes reflect processes that support memory encoding through deep elaborative processing. Similar analyses were performed for congruent trials, i.e. events that fit into existing knowledge structures, but no relationship between centrality changes and congruity were found. The results demonstrate that while elaboration and congruity have similar beneficial effects on source memory performance, the cortical signatures of these processes are probably not identical.
dc.languageEN
dc.rightsAttribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titleElaboration Benefits Source Memory Encoding Through Centrality Change
dc.typeJournal article
dc.creator.authorAmlien, Inge Kasbohm
dc.creator.authorSneve, Markus Handal
dc.creator.authorVidal-Pineiro, Didac
dc.creator.authorWalhovd, Kristine B
dc.creator.authorFjell, Anders Martin
cristin.unitcode185,17,5,0
cristin.unitnamePsykologisk institutt
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1
dc.identifier.cristin1709589
dc.identifier.bibliographiccitationinfo:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Scientific Reports&rft.volume=9&rft.spage=1&rft.date=2019
dc.identifier.jtitleScientific Reports
dc.identifier.volume9
dc.identifier.doihttp://dx.doi.org/10.1038/s41598-019-39999-1
dc.identifier.urnURN:NBN:no-74750
dc.type.documentTidsskriftartikkel
dc.type.peerreviewedPeer reviewed
dc.source.issn2045-2322
dc.identifier.fulltextFulltext https://www.duo.uio.no/bitstream/handle/10852/71626/1/Amlien_elaboration.pdf
dc.type.versionPublishedVersion
cristin.articleid3704
dc.relation.projectNFR/262453
dc.relation.projectNFR/249931


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