Connectivity Resources
Background of Connectivity in MEG: http://www.humanbrainmapping.org/files/2016/ED/GraphTheory_Woolrich_Mark_v2.pdf
MNE Connectivity: https://mne.tools/mne-connectivity/stable/auto_examples/index.html
Frequency based beamformers and connectivity: https://aaltoimaginglanguage.github.io/conpy/
Connectivity Statistics: https://brainets.github.io/frites/