Low spatial frequency filtering modulates early brain processing of affective complex pictures

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dc.contributor.authorAlorda, Catalina
dc.contributor.authorSerrano Pedraza, Ignacio
dc.contributor.authorCampos Bueno, José Javier
dc.contributor.authorSierra Vázquez, Vicente
dc.contributor.authorMontoya, Pedro
dc.date.accessioned2023-06-20T11:11:33Z
dc.date.available2023-06-20T11:11:33Z
dc.date.issued2007-11-05
dc.description.abstractRecent research on affective processing has suggested that low spatial frequency information of fearful faces provide rapid emotional cues to the amygdala, whereas high spatial frequencies convey fine-grained information to the fusiform gyrus, regardless of emotional expression. In the present experiment, we examined the effects of low (LSF, <15 cycles/image width) and high spatial frequency filtering (HSF, >25 cycles/image width) on brain processing of complex pictures depicting pleasant, unpleasant, and neutral scenes. Event-related potentials (ERP), percentage of recognized stimuli and response times were recorded in 19 healthy volunteers. Behavioral results indicated faster reaction times in response to unpleasant LSF than to unpleasant HSF pictures. Unpleasant LSF pictures and pleasant unfiltered pictures also elicited significant enhancements of P1 amplitudes at occipital electrodes as compared to neutral LSF and unfiltered pictures, respectively; whereas no significant effects of affective modulation were found for HSF pictures. Moreover, mean ERP amplitudes in the time between 200 and 500ms post-stimulus were significantly greater for affective (pleasant and unpleasant) than for neutral unfiltered pictures; whereas no significant affective modulation was found for HSF or LSF pictures at those latencies. The fact that affective LSF pictures elicited an enhancement of brain responses at early, but not at later latencies, suggests the existence of a rapid and preattentive neural mechanism for the processing of motivationally relevant stimuli, which could be driven by LSF cues. Our findings confirm thus previous results showing differences on brain processing of affective LSF and HSF faces, and extend these results to more complex and social affective pictures.
dc.description.departmentDepto. de Psicología Experimental, Procesos Cognitivos y Logopedia
dc.description.facultyFac. de Psicología
dc.description.refereedTRUE
dc.description.sponsorshipMinisterio de Ciencia y Tecnología
dc.description.sponsorshipFondo para el Desarrollo Regional Europeo
dc.description.sponsorshipEuropean Regional Development Funds
dc.description.sponsorshipComunidad de Madrid
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/36300
dc.identifier.doi10.1016/j.neuropsychologia.2007.06.017
dc.identifier.issn0028-3932
dc.identifier.officialurlhttp://dx.doi:10.1016/j.neuropsychologia.2007.06.017
dc.identifier.relatedurlhttp://www.journals.elsevier.com/neuropsychologia/
dc.identifier.urihttps://hdl.handle.net/20.500.14352/51813
dc.issue.number14
dc.journal.titleNeuropsychologia
dc.language.isoeng
dc.page.final3233
dc.page.initial3223
dc.publisherElsevier
dc.relation.projectIDSEJ2004-01332(PM)
dc.relation.projectIDBSO2002-00192 (VSV & ISP)
dc.relation.projectIDPR145/03-12169
dc.rights.accessRightsrestricted access
dc.subject.cdu159.9.07
dc.subject.cdu159.93
dc.subject.keywordAffective pictures
dc.subject.keywordSpatial frequency filtering
dc.subject.keywordEvent-related potentials
dc.subject.ucmPsicología experimental
dc.subject.ucmPercepción
dc.subject.unesco6106 Psicología Experimental
dc.subject.unesco6106.09 Procesos de Percepción
dc.titleLow spatial frequency filtering modulates early brain processing of affective complex pictures
dc.typejournal article
dc.volume.number45
dspace.entity.typePublication
relation.isAuthorOfPublication0fc94368-bbc4-426b-915d-34d2e98197db
relation.isAuthorOfPublication547ae8ec-3c28-4360-8df8-f1044e6fd373
relation.isAuthorOfPublication0bfd39a7-dc89-4288-a952-63984af80133
relation.isAuthorOfPublication.latestForDiscovery0fc94368-bbc4-426b-915d-34d2e98197db
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