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Most brain functional connectivity methods in fMRI require a brain parcellation into functionally homogeneous regions. In this work we propose a novel parcellation approach based on a spatial hierarchical clustering, that provides clusters within a multi-level framework. The method has the advantage of producing several brain parcellations rather than a single one from a fixed size-homogeneity criterion...
Metrics of network structure obtained using graph theory can provide valuable insights into the functioning and overall operation of neuronal networks in the brain. The objectives of this paper are to highlight the shortcomings of commonly used network structure metrics in the study of functional connectivity networks today and to propose a methodology for deriving more sensitive metrics which may...
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