Measuring Connectivity in Linear Multivariate Processes: Definitions, Interpretation, and Practical Analysis
Figure 7
Spectral functions and frequency-domain measures of coupling for the exemplary neurophysiological application (: left central EEG; : right central EEG; : parietal EEG; : occipital EEG). (a), Power spectral density of the process and coherence between and () plotted together with its corresponding threshold for significance . (b), Inverse power spectral density of and partial coherence between and plotted together with its corresponding threshold for significance . Vertical dashed lines in each off-diagonal plot denote the bounds of the beta frequency band (13–30 Hz).
