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dc.contributor.authorNúñez Novo, Pablo 
dc.contributor.authorPoza Crespo, Jesús 
dc.contributor.authorGómez Pilar, Javier
dc.contributor.authorBachiller Matarranz, Alejandro
dc.contributor.authorGómez Peña, Carlos 
dc.contributor.authorLubeiro Juárez, Alba
dc.contributor.authorMolina Rodríguez, Vicente 
dc.contributor.authorHornero Sánchez, Roberto 
dc.date.accessioned2016-12-15T06:54:56Z
dc.date.available2016-12-15T06:54:56Z
dc.date.issued2016
dc.identifier.citationAnnual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference, 2016, p. 3724 - 3727es
dc.identifier.issn1557-170Xes
dc.identifier.urihttp://uvadoc.uva.es/handle/10324/21744
dc.descriptionProducción Científicaes
dc.description.abstractThe aim of this study was to characterize brain dynamics during an auditory oddball task. For this purpose, a measure of the non-stationarity of a given time-frequency representation (TFR) was applied to electroencephalographic (EEG) signals. EEG activity was acquired from 20 schizophrenic (SCH) patients and 20 healthy controls while they underwent a three-stimulus auditory oddball task. The Degree of Stationarity (DS), a measure of the non-stationarity of the TFR, was computed using the continuous wavelet transform. DS was calculated for both the baseline [-300 0] ms and active task [150 550] ms windows of a P300 auditory oddball task. Results showed a statistically significant increase (p<0.05) in non-stationarity for controls during the cognitive task in the central region, while less widespread statistically significant differences were obtained for SCH patients, especially in the beta-2 and gamma bands. Our findings support the relevance of DS as a means to study cerebral processing in SCH. Furthermore, the lack of statistically significant changes in DS for SCH patients suggests an abnormal reorganization of neural dynamics during an oddball task.es
dc.format.mimetypeapplication/pdfes
dc.language.isoenges
dc.publisherIEEE Conference Publicationses
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectSchizophreniaes
dc.titleAnalysis of the Non-stationarity of Neural Activity during an Auditory Oddball Task in Schizophreniaes
dc.typeinfo:eu-repo/semantics/articlees
dc.identifier.doi10.1109/EMBC.2016.7591537es
dc.relation.publisherversionhttp://ieeexplore.ieee.org/servlet/opac?punumber=1000269es
dc.peerreviewedSIes
dc.description.projectMinisterio de Economía y Competitividad (TEC2014-53196-R)es
dc.description.projectJunta de Castilla y León (VA059U13)es
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International


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