dc.contributor.author | Núñez Novo, Pablo | |
dc.contributor.author | Poza Crespo, Jesús | |
dc.contributor.author | Gómez Pilar, Javier | |
dc.contributor.author | Bachiller Matarranz, Alejandro | |
dc.contributor.author | Gómez Peña, Carlos | |
dc.contributor.author | Lubeiro Juarez, Alba | |
dc.contributor.author | Molina Rodríguez, Vicente | |
dc.contributor.author | Hornero Sánchez, Roberto | |
dc.date.accessioned | 2016-12-15T06:54:56Z | |
dc.date.available | 2016-12-15T06:54:56Z | |
dc.date.issued | 2016 | |
dc.identifier.citation | Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference, 2016, p. 3724 - 3727 | es |
dc.identifier.issn | 1557-170X | es |
dc.identifier.uri | http://uvadoc.uva.es/handle/10324/21744 | |
dc.description | Producción Científica | es |
dc.description.abstract | The 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.mimetype | application/pdf | es |
dc.language.iso | eng | es |
dc.publisher | IEEE Conference Publications | es |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | |
dc.subject | Schizophrenia | es |
dc.title | Analysis of the non-stationarity of neural activity during an auditory oddball task in schizophrenia | es |
dc.type | info:eu-repo/semantics/article | es |
dc.identifier.doi | 10.1109/EMBC.2016.7591537 | es |
dc.relation.publisherversion | http://ieeexplore.ieee.org/servlet/opac?punumber=1000269 | es |
dc.peerreviewed | SI | es |
dc.description.project | Ministerio de Economía y Competitividad (TEC2014-53196-R) | es |
dc.description.project | Junta de Castilla y León (VA059U13) | es |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 International | |