Voluntary modulations of attention in a semantic auditory-visual matching Task: an ERP study

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dc.contributor.authorOrtega, Rodrigo
dc.contributor.authorLopez, Vladimir
dc.contributor.authorAboitiz, Francisco
dc.date.accessioned2024-01-10T13:44:12Z
dc.date.available2024-01-10T13:44:12Z
dc.date.issued2008
dc.description.abstractThe present study explores the neural correlates of voluntary modulations of attention in an auditory-visual matching task. Visual stimuli (a female or a male face) were preceded in close temporal proximity by auditory stimuli consisting of the Spanish word for "man" and "woman" ("hombre" or "mujer"). In 80% of the trials the gender of the two stimuli coincided. Participants were asked to mentally count the specific instances in which a female face appeared after hearing the word "man" (10 % of the trials). Our results show attention-related amplitude modulation of the early visual ERP components NI and anterior P2, but also amplitude modulations of (i) the N270 potential usually associated with conflict detection, (ii) a P300 wave related to infrequency, and (iii) an N400 potential related to semantic incongruence. The elicitation of these latter components varied according to task manipulations, evidencing the role of voluntary allocation of attention in fine-tuning cognitive processing, which includes basic processes like detection of infrequency or semantic incongruity often considered to be volition-independent.
dc.description.funderFondecyt
dc.description.funderMillenium Center for Integrative Neuroscience.
dc.format.extent8 páginas
dc.fuente.origenWOS
dc.identifier.eissn0717-6287
dc.identifier.issn0716-9760
dc.identifier.pubmedidMEDLINE:19621125
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/78863
dc.identifier.wosidWOS:000264574400010
dc.information.autorucMedicina;Aboitiz F ;S/I;100165
dc.information.autorucPsicología;Lopez V;S/I;1002510
dc.information.autorucMedicina;Ortega R ;S/I;1004162
dc.issue.numero4
dc.language.isoen
dc.nota.accesoSin adjunto
dc.pagina.final460
dc.pagina.inicio453
dc.publisherSOC BIOLGIA CHILE
dc.revistaBIOLOGICAL RESEARCH
dc.rightsregistro bibliográfico
dc.subjectVoluntary attention
dc.subjectsemantic processing
dc.subjectTop down control
dc.subjectERP components
dc.subjectSELECTIVE ATTENTION
dc.subjectPOTENTIAL N270
dc.subjectHUMAN BRAIN
dc.subjectCOGNITIVE IMPAIRMENT
dc.subjectCONFLICT
dc.subjectCOMPONENT
dc.subjectINTEGRATION
dc.subjectCONGRUITY
dc.subjectHUMANS
dc.titleVoluntary modulations of attention in a semantic auditory-visual matching Task: an ERP study
dc.typeartículo
dc.volumen41
sipa.codpersvinculados100165
sipa.codpersvinculados1002510
sipa.codpersvinculados1004162
sipa.indexWOS
sipa.indexScielo
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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