Figure 1: Schematic illustration of the reconstruction of MEG signals. (a) MEG signals. (b) Beamforming based on a template MRI. (c) Reconstructed time series for 90 regions of interest (ROIs). (d) Connectivity matrix containing the functional connections between ROIs based on the PLI. (e) Construction of the MST-based brain network (where each ROIs is a node and each functional connection an edge).