Title
Linking Brain Connectivity Across Different Time Scales With Electroencephalogram, Functional Magnetic Resonance Imaging, And Diffusion Tensor Imaging
Abstract
Structural and functional connectivity are intrinsic properties of the human brain and represent the amount of cognitive capacities of individual subjects. These connections are modulated due to development, learning, and disease. Momentary adaptations in functional connectivity alter the structural connections, which in turn affect the functional connectivity. Thus, structural and functional connectivity interact on a broad timescale. In this study, we aimed to explore distinct measures of connectivity assessed by functional magnetic resonance imaging and diffusion tensor imaging and their association to the dominant electroencephalogram oscillatory property at rest: the individual alpha frequency (IAF). We found that in 21 healthy young subjects, small intraindividual temporal IAF fluctuations were correlated to increased blood oxygenation level-dependent signal in brain areas associated to working memory functions and to the modulation of attention. These areas colocalized with functionally connected networks supporting the respective functions. Furthermore, subjects with higher IAF show increased fractional anisotropy values in fascicles connecting the above-mentioned areas and networks. Hence, due to a multimodal approach a consistent functionally and structurally connected network related to IAF was observed.
Year
DOI
Venue
2012
10.1089/brain.2011.0063
BRAIN CONNECTIVITY
Keywords
Field
DocType
DTI, EEG, fMRI, resting state
Brain mapping,Neuroscience,Diffusion MRI,Functional magnetic resonance imaging,Biology,Fractional anisotropy,Working memory,Resting state fMRI,Human brain,Electroencephalography
Journal
Volume
Issue
ISSN
2
1
2158-0014
Citations 
PageRank 
References 
6
0.57
19
Authors
7
Name
Order
Citations
PageRank
Kay Jann1899.10
Andrea Federspiel2426.28
Stéphanie Giezendanner390.94
Jennifer Andreotti490.94
Mara Kottlow5171.46
Thomas Dierks6507.16
Thomas Koenig7202.40