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dc.contributor.authorMelia, Umberto
dc.contributor.authorVallverdú, Montserrat
dc.contributor.authorClarià Sancho, Francisco
dc.contributor.authorCasanova, Jordi
dc.contributor.authorValls-Solé, Josep
dc.contributor.authorCaminal Magrans, Pere
dc.date.accessioned2016-03-16T11:04:38Z
dc.date.issued2011
dc.identifier.issn1557-170X
dc.identifier.urihttp://hdl.handle.net/10459.1/56723
dc.description.abstractAn efficient way to investigate the neural basis of nociceptive responses is the event-related brain potentials (ERPs). One component belonging to this family of ERPs is the mismatch negativity (MMN). It reflects pre-attentive detection of changes in the incoming stimulus by comparing the new stimulus with sensory memory traces. In this work, single trials of ERP taken from EEG signal recorded under thermal and electric stimulation were analyzed with time-frequency representation (TFR). The main objective of this work was to characterize responses to frequent and infrequent stimuli with TFR functions. Variables defined on instantaneous frequency and instantaneous power presented a statistical significance (p-value<;0.0001) differentiating these two kind of responses. Furthermore, differences between the averaged instantaneous power and instantaneous frequency were also analyzed. It was found that instantaneous power and instantaneous frequency were able to better isolate the MMN components from EEG noise in certain frequency bands.ca_ES
dc.format.mimetypeapplication/pdf
dc.language.isoengca_ES
dc.publisherIEEEca_ES
dc.relation.isformatofReproducció del document publicat a https://doi.org/10.1109/IEMBS.2011.6091902ca_ES
dc.relation.ispartofProceeding of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2011, vol. 1, num. 1, p. 7719-7722ca_ES
dc.rights(c) IEEE, 2011ca_ES
dc.subjectIngeniería biomédicaca_ES
dc.subjectProcesado de señales biomédicasca_ES
dc.subject.classificationEnginyeria biomèdica
dc.subject.otherEnginyeria biomèdicaca_ES
dc.titleTime-Frequency Characterization of Mismatch Negativity in Nociceptive Responsesca_ES
dc.typearticleca_ES
dc.date.updated2016-03-16T10:59:44Z
dc.identifier.idgrec017403
dc.type.versionpublishedVersionca_ES
dc.rights.accessRightsinfo:eu-repo/semantics/restrictedAccessca_ES
dc.identifier.doihttps://doi.org/10.1109/IEMBS.2011.6091902
dc.date.embargoEndDate2025-01-01


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