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Resting-state fMRI ...
Resting-state fMRI correlations : From link-wise unreliability to whole brain stability
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- Pannunzi, Mario (author)
- Pompeu Fabra University
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- Hindriks, Rikkert (author)
- Pompeu Fabra University
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- Bettinardi, Ruggero G. (author)
- Pompeu Fabra University
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- Wenger, Elisabeth (author)
- Max Planck Institute for Human Development
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- Lisofsky, Nina (author)
- Max Planck Institute for Human Development,University Medical Center Hamburg-Eppendorf
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- Martensson, Johan (author)
- Lund University,Lunds universitet,Institutionen för psykologi,Samhällsvetenskapliga institutioner och centrumbildningar,Samhällsvetenskapliga fakulteten,Department of Psychology,Departments of Administrative, Economic and Social Sciences,Faculty of Social Sciences,Max Planck Institute for Human Development
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- Butler, Oisin (author)
- Max Planck Institute for Human Development
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- Filevich, Elisa (author)
- Humboldt University of Berlin,Bernstein Center for Computational Neuroscience Berlin
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- Becker, Maxi (author)
- University Medical Center Hamburg-Eppendorf,Max Planck Institute for Human Development
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- Lochstet, Martyna (author)
- Max Planck Institute for Human Development
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- Kühn, Simone (author)
- University Medical Center Hamburg-Eppendorf,Max Planck Institute for Human Development
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- Deco, Gustavo (author)
- Pompeu Fabra University
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(creator_code:org_t)
- Elsevier BV, 2017
- 2017
- English 13 s.
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In: NeuroImage. - : Elsevier BV. - 1053-8119. ; 157, s. 250-262
- Related links:
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http://dx.doi.org/10...
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https://pure.mpg.de/...
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Abstract
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- The functional architecture of spontaneous BOLD fluctuations has been characterized in detail by numerous studies, demonstrating its potential relevance as a biomarker. However, the systematic investigation of its consistency is still in its infancy. Here, we analyze within- and between-subject variability and test-retest reliability of resting-state functional connectivity (FC) in a unique data set comprising multiple fMRI scans (42) from 5 subjects, and 50 single scans from 50 subjects. We adopt a statistical framework that enables us to identify different sources of variability in FC. We show that the low reliability of single links can be significantly improved by using multiple scans per subject. Moreover, in contrast to earlier studies, we show that spatial heterogeneity in FC reliability is not significant. Finally, we demonstrate that despite the low reliability of individual links, the information carried by the whole-brain FC matrix is robust and can be used as a functional fingerprint to identify individual subjects from the population.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Neurovetenskaper (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Neurosciences (hsv//eng)
Publication and Content Type
- art (subject category)
- ref (subject category)
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NeuroImage
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- By the author/editor
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Pannunzi, Mario
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Hindriks, Rikker ...
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Bettinardi, Rugg ...
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Wenger, Elisabet ...
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Lisofsky, Nina
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Martensson, Joha ...
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Butler, Oisin
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Filevich, Elisa
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Becker, Maxi
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Lochstet, Martyn ...
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Kühn, Simone
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Deco, Gustavo
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- About the subject
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- MEDICAL AND HEALTH SCIENCES
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MEDICAL AND HEAL ...
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and Basic Medicine
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and Neurosciences
- Articles in the publication
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NeuroImage
- By the university
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Lund University