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dc.contributor.authorLorenzo-López, Laura
dc.contributor.authorMaseda, Ana
dc.contributor.authorBuján, Ana
dc.contributor.authorLabra, Carmen de
dc.contributor.authorAmenedo, Elena
dc.contributor.authorMillán-Calenti, José Carlos
dc.date.accessioned2016-03-02T08:33:16Z
dc.date.available2016-03-02T08:33:16Z
dc.date.issued2016-01-12
dc.identifier.citationLorenzo-López L, Maseda A, Buján A, Labra C, Amenedo E, Millán-Calenti JC. Preserved suppression of salient irrelevant stimuli during visual search in age-associated memory impairment. Front Psychol. 2016;6:2033es_ES
dc.identifier.urihttp://hdl.handle.net/2183/16160
dc.description.abstract[Abstract] Previous studies have suggested that older adults with age-associated memory impairment (AAMI) may show a significant decline in attentional resource capacity and inhibitory processes in addition to memory impairment. In the present paper, the potential attentional capture by task-irrelevant stimuli was examined in older adults with AAMI compared to healthy older adults using scalp-recorded event-related brain potentials (ERPs). ERPs were recorded during the execution of a visual search task, in which the participants had to detect the presence of a target stimulus that differed from distractors by orientation. To explore the automatic attentional capture phenomenon, an irrelevant distractor stimulus defined by a different feature (color) was also presented without previous knowledge of the participants. A consistent N2pc, an electrophysiological indicator of attentional deployment, was present for target stimuli but not for task-irrelevant color stimuli, suggesting that these irrelevant distractors did not attract attention in AAMI older adults. Furthermore, the N2pc for targets was significantly delayed in AAMI patients compared to healthy older controls. Together, these findings suggest a specific impairment of the attentional selection process of relevant target stimuli in these individuals and indicate that the mechanism of top-down suppression of entirely task-irrelevant stimuli is preserved, at least when the target and the irrelevant stimuli are perceptually very different.es_ES
dc.language.isoenges_ES
dc.publisherFrontierses_ES
dc.relation.urihttp://dx.doi.org/10.3389/fpsyg.2015.02033es_ES
dc.rightsCreative Commons Attribution 4.0 International License (CC-BY 4.0)es_ES
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectAAMIes_ES
dc.subjectAutomatic attentional capturees_ES
dc.subjectERPses_ES
dc.subjectN2pces_ES
dc.subjectVisual searches_ES
dc.titlePreserved suppression of salient irrelevant stimuli during visual search in age-associated memory impairmentes_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.rights.accessinfo:eu-repo/semantics/openAccesses_ES


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