Best options for broadband gamma localization

[jstout211 (Jeff Stout)]

The post below might be helpful for you. The data is from a MEGIN system and the analysis is of alpha/gamma during visual processing. The jupyter notebook from the post goes through a full beamformer analysis with justified parameters.

Shrinkage applied in make_lcmv and make_dics

I have very good experiences applying make_lcmv amd make_dics to MEGIN data after using SSS and ICA (resulting in a rank 69). The algorithms provide stable and interpretable results. Thats for providing those - I do however have a question on what exactly is done in those algorithms when handling the low ranked cov matrices. I understand that regularization by diagnonal loading is not sufficient given that large rank deficiency - and that shrinkage is applied by the algorithms? (as suggested b…

https://github.com/Neuronal-Oscillations/FLUX/blob/main/MNEPython/DICS.ipynb

–Jeff