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  2. School of Engineering
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  4. Publikationen School of Engineering
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dc.contributor.authorNäpflin, Markus-
dc.contributor.authorWildi, Marc-
dc.contributor.authorSarnthein, Johannes-
dc.date.accessioned2018-12-07T07:53:12Z-
dc.date.available2018-12-07T07:53:12Z-
dc.date.issued2008-
dc.identifier.issn1053-8119de_CH
dc.identifier.issn1095-9572de_CH
dc.identifier.urihttps://digitalcollection.zhaw.ch/handle/11475/13631-
dc.description.abstractThe inter-individual variation of EEG spectra is large even for the same cognitive task. We asked whether task-induced EEG spectra remain stable over more than a year. We recorded EEG in 41 healthy adults who performed a modified Sternberg task. In 20 subjects EEG was recorded in a second session with retest intervals 12-40 months. For electrodes AFz, Cz and Pz peak frequency and peak height were determined. We compared the curve shape of power spectra by regressing spectra pairwise onto each other and calculated a t-value. The t-value and pairwise differences in peak frequency and peak height between all sessions were entered into a generalized linear model (GLM) where binary output represents the recognition probability. The results were cross-validated by out-of-sample testing. Of the 40 sessions, 35 were correctly matched. The shape of power spectra contributed most to recognition. Out of all 2400 pairwise comparisons 99.3% were correct, with sensitivity 87.5% and specificity 99.5%. The intra-individual stability is high compared to the inter-individual variation. Thus, interleaved EEG-fMRI measurements are valid. Furthermore, longitudinal effects on cognitive EEG can be judged against the intra-individual variability in subjects.de_CH
dc.language.isoende_CH
dc.publisherElsevierde_CH
dc.relation.ispartofNeuroImagede_CH
dc.rightsLicence according to publishing contractde_CH
dc.subjectElectroencephalographyde_CH
dc.subjectShort-term memoryde_CH
dc.subjectMental recallde_CH
dc.subjectReproducibility of resultsde_CH
dc.subjectSensitivity and specificityde_CH
dc.subjectAlgorithmsde_CH
dc.subjectTask performance and analysisde_CH
dc.subject.ddc616.8: Neurologie und Krankheiten des Nervensystemsde_CH
dc.titleTest–retest reliability of EEG spectra during a working memory taskde_CH
dc.typeBeitrag in wissenschaftlicher Zeitschriftde_CH
dcterms.typeTextde_CH
zhaw.departementSchool of Engineeringde_CH
zhaw.organisationalunitInstitut für Datenanalyse und Prozessdesign (IDP)de_CH
dc.identifier.doi10.1016/j.neuroimage.2008.08.028de_CH
dc.identifier.pmid18817882de_CH
zhaw.funding.euNode_CH
zhaw.issue4de_CH
zhaw.originated.zhawYesde_CH
zhaw.pages.end693de_CH
zhaw.pages.start687de_CH
zhaw.publication.statuspublishedVersionde_CH
zhaw.volume43de_CH
zhaw.publication.reviewPeer review (Publikation)de_CH
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Näpflin, M., Wildi, M., & Sarnthein, J. (2008). Test–retest reliability of EEG spectra during a working memory task. NeuroImage, 43(4), 687–693. https://doi.org/10.1016/j.neuroimage.2008.08.028
Näpflin, M., Wildi, M. and Sarnthein, J. (2008) ‘Test–retest reliability of EEG spectra during a working memory task’, NeuroImage, 43(4), pp. 687–693. Available at: https://doi.org/10.1016/j.neuroimage.2008.08.028.
M. Näpflin, M. Wildi, and J. Sarnthein, “Test–retest reliability of EEG spectra during a working memory task,” NeuroImage, vol. 43, no. 4, pp. 687–693, 2008, doi: 10.1016/j.neuroimage.2008.08.028.
NÄPFLIN, Markus, Marc WILDI und Johannes SARNTHEIN, 2008. Test–retest reliability of EEG spectra during a working memory task. NeuroImage. 2008. Bd. 43, Nr. 4, S. 687–693. DOI 10.1016/j.neuroimage.2008.08.028
Näpflin, Markus, Marc Wildi, and Johannes Sarnthein. 2008. “Test–Retest Reliability of EEG Spectra during a Working Memory Task.” NeuroImage 43 (4): 687–93. https://doi.org/10.1016/j.neuroimage.2008.08.028.
Näpflin, Markus, et al. “Test–Retest Reliability of EEG Spectra during a Working Memory Task.” NeuroImage, vol. 43, no. 4, 2008, pp. 687–93, https://doi.org/10.1016/j.neuroimage.2008.08.028.


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