Repository logo
 
Publication

Effects of expectation on face perception and its association with expertise

2024Journal article Open access
Simple item page
dc.contributor.authorMares, Inês
dc.contributor.authorSmith, Fraser W.
dc.contributor.authorGoddard, E. J.
dc.contributor.authorKeighery, Lianne
dc.contributor.authorPappasava, Michael
dc.contributor.authorEwing, Louise
dc.contributor.authorSmith, Marie L.
dc.date.accessioned2024-04-30T14:48:07Z
dc.date.available2024-04-30T14:48:07Z
dc.date.issued2024
dc.description.abstractPerceptual decisions are derived from the combination of priors and sensorial input. While priors are broadly understood to refect experience/expertise developed over one’s lifetime, the role of perceptual expertise at the individual level has seldom been directly explored. Here, we manipulate probabilistic information associated with a high and low expertise category (faces and cars respectively), while assessing individual level of expertise with each category. 67 participants learned the probabilistic association between a color cue and each target category (face/car) in a behavioural categorization task. Neural activity (EEG) was then recorded in a similar paradigm in the same participants featuring the previously learned contingencies without the explicit task. Behaviourally, perception of the higher expertise category (faces) was modulated by expectation. Specifcally, we observed facilitatory and interference efects when targets were correctly or incorrectly expected, which were also associated with independently measured individual levels of face expertise. Multivariate pattern analysis of the EEG signal revealed clear efects of expectation from 100 ms post stimulus, with signifcant decoding of the neural response to expected vs. not stimuli, when viewing identical images. Latency of peak decoding when participants saw faces was directly associated with individual level facilitation efects in the behavioural task. The current results not only provide time sensitive evidence of expectation efects on early perception but highlight the role of higher-level expertise on forming priors.pt_PT
dc.description.sponsorshipFundação para a Ciência e Tecnologia - FCTpt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationInês Mares, Fraser W. Smith, E. J. Goddard, Lianne Keighery, Michael Pappasava, Louise Ewing, & Marie L. Smith. (2024). Effects of expectation on face perception and its association with expertise. Scientific Reports, 14(1), 1–12. https://doi.org/10.1038/s41598-024-59284-0pt_PT
dc.identifier.doi10.1038/s41598-024-59284-0pt_PT
dc.identifier.issn20452322
dc.identifier.urihttp://hdl.handle.net/10400.12/9746
dc.language.isoporpt_PT
dc.peerreviewedyespt_PT
dc.publisherNature Publishing Grouppt_PT
dc.relationID/04810/2020pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectExpectationpt_PT
dc.subjectPredictionpt_PT
dc.subjectExpertisept_PT
dc.subjectFace processingpt_PT
dc.subjectEEGpt_PT
dc.subjectMVPApt_PT
dc.titleEffects of expectation on face perception and its association with expertisept_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.conferencePlaceUnited Kingdompt_PT
oaire.citation.endPage12pt_PT
oaire.citation.issue1pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleScientific Reportspt_PT
oaire.citation.volume14pt_PT
person.familyNameKeighery
person.familyNameEwing
person.givenNameLianne
person.givenNameLouise
person.identifier.orcid0000-0001-7734-0773
person.identifier.orcid0000-0001-5263-1267
person.identifier.scopus-author-id16028304500
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication86e76385-e3d8-4177-8028-160d0b3ad260
relation.isAuthorOfPublication6839daf7-46f3-4947-9240-f7b9b86048c1
relation.isAuthorOfPublication.latestForDiscovery86e76385-e3d8-4177-8028-160d0b3ad260

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Scientific Reports abril.pdf
Size:
2.16 MB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.61 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

WJCR - Artigos em revistas internacionais