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dc.contributor.author Kaunitz, Lisandro N.
dc.contributor.author Kamienkowski, Juan Esteban
dc.contributor.author Varatharajah, Alexander
dc.contributor.author Sigman, Mariano
dc.contributor.author Quian Quiroga, Rodrigo
dc.contributor.author Ison, Matias J.
dc.date.available 2015-10-07T15:42:11Z
dc.date.issued 2013-12
dc.identifier.citation Kaunitz, Lisandro N.; Kamienkowski, Juan Esteban; Varatharajah, Alexander; Sigman, Mariano; Quian Quiroga, Rodrigo; et al.; Looking for a face in the crowd: Fixation-related potentials in an eye-movement visual search task; Elsevier; Neuroimage; 89; 12-2013; 297-305
dc.identifier.issn 1053-8119
dc.identifier.uri http://hdl.handle.net/11336/2383
dc.description.abstract Despite the compelling contribution of the study of event related potentials (ERPs) and eye movements to cognitive neuroscience, these two approaches have largely evolved independently. We designed an eye-movement visual search paradigm that allowed us to concurrently record EEG and eye movements while subjects were asked to find a hidden target face in a crowded scene with distractor faces. Fixation event-related potentials (fERPs) to target and distractor stimuli showed the emergence of robust sensory components associated with the perception of stimuli and cognitive components associated with the detection of target faces. We compared those components with the ones obtained in a control task at fixation: qualitative similarities as well as differences in terms of scalp topography and latency emerged between the two. By using single trial analyses, fixations to target and distractors could be decoded from the EEG signals above chance level in 11 out of 12 subjects. Our results show that EEG signatures related to cognitive behavior develop across spatially unconstrained exploration of natural scenes and provide a first step towards understanding the mechanisms of target detection during natural search.
dc.format application/pdf
dc.language.iso eng
dc.publisher Elsevier
dc.rights info:eu-repo/semantics/openAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject Visual search
dc.subject EEG
dc.subject Faces
dc.subject Natural scenes
dc.subject Oddball
dc.subject.classification Neurociencias
dc.subject.classification Medicina Básica
dc.subject.classification CIENCIAS MÉDICAS Y DE LA SALUD
dc.title Looking for a face in the crowd: Fixation-related potentials in an eye-movement visual search task
dc.type info:eu-repo/semantics/article
dc.type info:ar-repo/semantics/artículo
dc.type info:eu-repo/semantics/publishedVersion
dc.date.updated 2016-03-30 10:35:44.97925-03
dc.journal.volume 89
dc.journal.pagination 297-305
dc.journal.pais Usa
dc.journal.ciudad Nueva York
dc.description.fil Fil: Kaunitz, Lisandro N.. University of Leicester. Department of Engineering; Reino Unido;
dc.description.fil Fil: Kamienkowski, Juan Esteban. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física. Laboratorio de Neurociencia Integrativa; Argentina; Universidad Diego Portales; Chile;
dc.description.fil Fil: Varatharajah, Alexander. University of Leicester. Department of Engineering; Reino Unido; University of Leicester. Centre for Systems Neuroscience; Reino Unido;
dc.description.fil Fil: Sigman, Mariano. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Instituto de Física del Sur; Argentina; Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física. Laboratorio de Neurociencia Integrativa; Argentina;
dc.description.fil Fil: Quian Quiroga, Rodrigo. University Of Leicester. Department of Engineering; Reino Unido; University of Leicester. Centre for Systems Neuroscience; Reino Unido;
dc.description.fil Fil: Ison, Matias J.. University Of Leicester. Department of Engineering; Reino Unido; University of Leicester. Centre for Systems Neuroscience; Reino Unido;
dc.journal.title Neuroimage
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.neuroimage.2013.12.006
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/url/http://neuro.org.ar/es/node/222
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S105381191301210X


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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Atribución-NoComercial-SinDerivadas 2.5 Argentina (CC BY-NC-ND 2.5 AR)