The inter-subject similarity of network backbone configurations for different states and anesthetic groups.

<p>a) The similarities of network backbones profiles among subjects were measured by cosine similarity. The network backbone profile for a subject was constructed with 400 backbones and was compared with others in five states of each anesthetic group. To test the significance of the similarity of network backbones, the 400 surrogate data sets for each subject were generated and the similarity of network backbones was calculated (Green bars). Errorbar indicates standard deviation of the similarities for all pairs of subjects. b) The number of unique network backbones for each state (from top 1600 backbones). Errorbar indicates standard error of subject variability. Unique backbones are the backbones that appear only in a certain state for each anesthetic group. The higher number of unique backbones in the baseline state of the sevoflurane group indicates that the other states share fewer backbones with baseline state compared to the propofol group.