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dc.date.accessioned2021-04-16T19:12:03Z
dc.date.available2021-04-16T19:12:03Z
dc.date.created2020-08-18T09:54:08Z
dc.date.issued2020
dc.identifier.citationAminihajibashi, Samira Hagen, Thomas Laeng, Bruno Espeseth, Thomas . Pupillary and behavioral markers of alerting and orienting: An individual difference approach. Brain and Cognition. 2020, 143
dc.identifier.urihttp://hdl.handle.net/10852/85300
dc.description.abstractMeasuring task-evoked pupillary (TEP) responses as an index of phasic activity in the locus coeruleus (LC), we examined two competing hypotheses regarding the alerting and orienting mechanisms of attention. According to a dual mechanism account (Fernandez-Duque & Posner, 1997), two separate noradrenergic and cholinergic mechanisms modulate, respectively, the alerting and orienting effects. However, Corbetta and colleagues (2008) proposed that LC phasic activity may also be involved in orienting effect through its functional relationship with the ventral attentional network. We recruited seventy-five healthy Norwegian participants to perform a Posner cueing task. Both behavioral and pupillary responses revealed the alerting effect. Also, both behavioral and pupillary responses indicated that cued attention is affected by age. Behavioral responses also revealed orienting effect However, we found no TEP differences between valid, invalid, and neutral conditions, suggesting that TEP effects were driven by the alerting effect of cue presentation. Moreover, both behavioral and pupillary estimates of alertness and orienting were uncorrelated. Finally, individual differences in general cognitive abilities did not appear to affect the orienting and alerting mechanisms. This pattern of results is consistent with the dual mechanism account of attention. However, the LC involvement in the (re)orienting attention may be driven by state-specific factors.
dc.languageEN
dc.rightsAttribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titlePupillary and behavioral markers of alerting and orienting: An individual difference approach
dc.typeJournal article
dc.creator.authorAminihajibashi, Samira
dc.creator.authorHagen, Thomas
dc.creator.authorLaeng, Bruno
dc.creator.authorEspeseth, Thomas
cristin.unitcode185,17,5,95
cristin.unitnameSenter for tverrfaglig forskning på rytme, tid og bevegelse (PSI)
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1
dc.identifier.cristin1823762
dc.identifier.bibliographiccitationinfo:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Brain and Cognition&rft.volume=143&rft.spage=&rft.date=2020
dc.identifier.jtitleBrain and Cognition
dc.identifier.volume143
dc.identifier.pagecount18
dc.identifier.doihttps://doi.org/10.1016/j.bandc.2020.105597
dc.identifier.urnURN:NBN:no-87913
dc.type.documentTidsskriftartikkel
dc.type.peerreviewedPeer reviewed
dc.source.issn0278-2626
dc.identifier.fulltextFulltext https://www.duo.uio.no/bitstream/handle/10852/85300/2/1-s2.0-S027826262030172X-main.pdf
dc.type.versionPublishedVersion
cristin.articleid105597
dc.relation.projectNFR/262762


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