Identifying oscillatory brain networks with hidden Gaussian graphical spectral models of MEEG

Gaussian graphical spectral (GGS) model and MAP1 inverse solution with Hermitian graphical LASSO (hgLASSO)

GGS model and interpretations of functional connectivity

The PSP processes myriad fulfills some frequency-domain mixing conditions and consequently Gaussianity in the complex-valued follows for brain oscillations \({\varvec{\iota}}\left(t,f\right)\)^4,28,90,91. Then, without loss of generality, the Gaussian graphical spectral (GGS) model (Eq. 8) with complex-valued Hermitian precision matrix \({{\varvec{\Theta}}}_{{\varvec{\iota}}{\varvec{\iota}}}\left(f\right)\) is the functional…