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dc.contributor.CRUESPUNIVERSIDADE DE ESTADUAL DE CAMPINASpt_BR
dc.typeArtigo de periódicopt_BR
dc.titleDefault Mode, Executive Function, And Language Functional Connectivity Networks Are Compromised In Mild Alzheimeŕs Diseasept_BR
dc.contributor.authorWeiler M.pt_BR
dc.contributor.authorFukuda A.pt_BR
dc.contributor.authorMassabki L.H.P.pt_BR
dc.contributor.authorLopes T.M.pt_BR
dc.contributor.authorFranco A.R.pt_BR
dc.contributor.authorDamasceno B.P.pt_BR
dc.contributor.authorCendes F.pt_BR
dc.contributor.authorBalthazar M.L.F.pt_BR
unicamp.authorWeiler, M., Neuroimaging Laboratory, Department of Neurology, University of Campinas (Unicamp), Brazilpt_BR
unicamp.authorFukuda, A., Neuroimaging Laboratory, Department of Neurology, University of Campinas (Unicamp), Brazilpt_BR
unicamp.authorMassabki, L.H.P., Neuroimaging Laboratory, Department of Neurology, University of Campinas (Unicamp), Brazilpt_BR
unicamp.authorLopes, T.M., Neuroimaging Laboratory, Department of Neurology, University of Campinas (Unicamp), Brazilpt_BR
unicamp.authorDamasceno, B.P., Unit for Neuropsychology and Neurolinguistics, Department of Neurology, University of Campinas (Unicamp), Brazilpt_BR
unicamp.authorCendes, F., Neuroimaging Laboratory, Department of Neurology, University of Campinas (Unicamp), Brazilpt_BR
unicamp.authorBalthazar, M.L.F., Neuroimaging Laboratory, Department of Neurology, University of Campinas (Unicamp), Brazil, Unit for Neuropsychology and Neurolinguistics, Department of Neurology, University of Campinas (Unicamp), Brazilpt_BR
unicamp.author.externalFranco, A.R., Brain Institute of Rio Grande do Sul, Catholic University of Rio Grande do Sul (PUCRS), Brazilpt
dc.description.abstractAlzheimer's disease (AD) is characterized by mental and cognitive problems, particularly with memory, language, visuospatial skills (VS), and executive functions (EF). Advances in the neuroimaging of AD have highlighted dysfunctions in functional connectivity networks (FCNs), especially in the memory related default mode network (DMN). However, little is known about the integrity and clinical significance of FNCs that process other cognitive functions than memory. We evaluated 22 patients with mild AD and 26 healthy controls through a resting state functional MRI scan. We aimed to identify different FCNs: the DMN, language, EF, and VS. Seed-based functional connectivity was calculated by placing a seed in the DMN (posterior cingulate cortex), language (Broca's and Wernicke's areas), EF (right and left dorsolateral prefrontal cortex), and VS networks (right and left associative visual cortex). We also performed regression analyses between individual connectivity maps for the different FCNs and the scores on cognitive tests. We found areas with significant decreases in functional connectivity in patients with mild AD in the DMN and Wernicke's area compared with controls. Increased connectivity in patients was observed in the EF network. Regarding multiple linear regression analyses, a significant correlation was only observed between the connectivity of the DMN and episodic memory (delayed recall) scores. In conclusion, functional connectivity alterations in mild AD are not restricted to the DMN. Other FCNs related to language and EF may be altered. However, we only found significant correlations between cognition and functional connectivity in the DMN and episodic memory performance. © 2014 Bentham Science Publishers.en
dc.relation.ispartofCurrent Alzheimer Researchpt_BR
dc.publisherBentham Science Publishers B.V.pt_BR
dc.date.issued2014pt_BR
dc.identifier.citationCurrent Alzheimer Research. Bentham Science Publishers B.v., v. 11, n. 3, p. 274 - 282, 2014.pt_BR
dc.language.isoenpt_BR
dc.description.volume11pt_BR
dc.description.issuenumber3pt_BR
dc.description.firstpage274pt_BR
dc.description.lastpage282pt_BR
dc.rightsfechadopt_BR
dc.sourceScopuspt_BR
dc.identifier.issn15672050pt_BR
dc.identifier.doi10.2174/1567205011666140131114716pt_BR
dc.identifier.urlhttp://www.scopus.com/inward/record.url?eid=2-s2.0-84897455607&partnerID=40&md5=1bd418e98b5cc5be2c7e661a3b28af96pt_BR
dc.date.available2015-06-25T17:53:26Z
dc.date.available2015-11-26T14:24:29Z-
dc.date.accessioned2015-06-25T17:53:26Z
dc.date.accessioned2015-11-26T14:24:29Z-
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dc.description.provenanceMade available in DSpace on 2015-11-26T14:24:29Z (GMT). No. of bitstreams: 2 2-s2.0-84897455607.pdf: 1469411 bytes, checksum: ce7fde003a802ef2cac88aa2537b69df (MD5) 2-s2.0-84897455607.pdf.txt: 39585 bytes, checksum: 7423b53e8339270943f045a00ceb9038 (MD5) Previous issue date: 2014en
dc.identifier.urihttp://www.repositorio.unicamp.br/handle/REPOSIP/86450
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/86450-
dc.identifier.idScopus2-s2.0-84897455607pt_BR
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