Unweighted graphs of the lower alpha band (8–10 Hz) for different patient groups and different fixed average degrees (K). For the AD, FTLD and control groups, the functional connectivity (SL) based graphs are shown as headplots for different values of K. Lower K values (higher threshold) result in a sparser network. On visual inspection, it is obvious that there are inter-group differences.
de Haan et al. BMC Neuroscience 2009 10:101 doi:10.1186/1471-2202-10-101