Scale-free and multifractal properties of fMRI signals during rest and task

Scale-free and multifractal properties of fMRI signals during rest and task

Scale-free (or 1/f spectral) properties in functional MRI (fMRI) signals have been evidenced for a decade as intrinsic characteristics of ongoing brain activity [46]. Recently, they were shown to fluctuate across brain networks and to be modulated between rest and task [26]: Notably, Hurst exponent...

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Bibliographic Details
Main Authors: Philippe eCIUCIU, Gaël eVaroquaux, Patrice eAbry, Sepideh eSadaghiani, Andreas eKleinschmidt
Format: Article
Language:English
Published: Frontiers Media S.A. 2012-06-01
Series:Frontiers in Physiology
Subjects:
fMRI
scale-free
ongoing activity
self-similarity
multifractality
wavelets
Online Access:http://journal.frontiersin.org/Journal/10.3389/fphys.2012.00186/full

Internet

http://journal.frontiersin.org/Journal/10.3389/fphys.2012.00186/full

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