Hyperplane navigation: A method to set individual scores in fMRI group datasets

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dc.contributor.authorSato J. R.
dc.contributor.authorCarlos E. Thomaz
dc.contributor.authorCardoso E.F.
dc.contributor.authorFujita A.
dc.contributor.authorMartin M.D.G.M.
dc.contributor.authorAmaro Jr. E.
dc.contributor.authorOrcidhttps://orcid.org/0000-0001-5566-1963
dc.date.accessioned2022-01-12T22:04:53Z
dc.date.available2022-01-12T22:04:53Z
dc.date.issued2008-10-01
dc.description.abstractRecent studies have demonstrated that spatial patterns of fMRI BOLD activity distribution over the brain may be used to classify different groups or mental states. These studies are based on the application of advanced pattern recognition approaches and multivariate statistical classifiers. Most published articles in this field are focused on improving the accuracy rates and many approaches have been proposed to accomplish this task. Nevertheless, a point inherent to most machine learning methods (and still relatively unexplored in neuroimaging) is how the discriminative information can be used to characterize groups and their differences. In this work, we introduce the Maximum Uncertainty Linear Discrimination Analysis (MLDA) and show how it can be applied to infer groups' patterns by discriminant hyperplane navigation. In addition, we show that it naturally defines a behavioral score, i.e., an index quantifying the distance between the states of a subject from predefined groups. We validate and illustrate this approach using a motor block design fMRI experiment data with 35 subjects. © 2008 Elsevier Inc.
dc.description.firstpage1473
dc.description.issuenumber4
dc.description.lastpage1480
dc.description.volume42
dc.identifier.citationSATO, J. T.; THOMAZ, C. E.; CARDOSO, E. F.; FUJITA, A.; MARTIM, M. D. G. M.; AMARO JUNIOR, E. Hyperplane navigation: A method to set individual scores in fMRI group datasets. NeuroImage, v. 42, n. 4, p. 1473-1480, Oct. 2008.
dc.identifier.doi10.1016/j.neuroimage.2008.06.024
dc.identifier.issn1053-8119
dc.identifier.urihttps://repositorio.fei.edu.br/handle/FEI/4302
dc.relation.ispartofNeuroImage
dc.rightsAcesso Restrito
dc.titleHyperplane navigation: A method to set individual scores in fMRI group datasets
dc.typeArtigo
fei.scopus.citations27
fei.scopus.eid2-s2.0-55349099835
fei.scopus.updated2024-07-01
fei.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=55349099835&origin=inward
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