Epilepsy source localization in MEG and eCOG

[tmedani]

@alain

I am wondering if there exists an MEG or eCOG dataset labeled with e.g. interictal spikes or pre-ictal activity and anatomical data to support a realistic source model. Ideally something sufficiently close to the tutorial examples so I can extrapolate (my BST expertise is still very limited).

@alain Currently, we don't have any complete (Ephys + MRIs) and labeled Ecog/MEG data to use for the tutorial. We will consider this for future integrations.

@alain

I imagine that inverse models should be applicable to eCOG similarly as to EEG (but with better results)

Yes, but it may require more attention when computing the forward model since in iEEG both the sources and the sensors are in the same area.

@alain

For SEEG, as far as I understand, the BST tutorial localizes sources to the vicinity of electrodes.

Since the sensors are close to the sources, so there is a high chance that the localized source will be located next to the sensors ~(the sensors close to the source are more sensitive than the others).