Additional file 1.

Threshold analysis in the lower alpha frequency band (8–10 Hz). Graph analysis results of unweighted networks as presented in this paper are dependent on an arbitrarily chosen threshold (in our study K, mean degree of the network). This supplement, including 3 figures, shows that the reported results (K = 5) are representative for a broad range of K thresholds.

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de Haan et al. BMC Neuroscience 2009 10:101   doi:10.1186/1471-2202-10-101