Hello again!
Regarding the use of the mixed head models, I understand that they cannot be used to work at group level. I was wondering if it would be possible to calculate the sources and do individual analysis using the mixed model, and then extract only cortical sources and use these for group analysis.
There seems to be some slight differences between the sources of the cortical and mixed models (see images attached).
We only have a small group of five subjects and this issue might not be anything significant, but we were wondering if this is something possible to consider and not too big a task?
We would like to use the constrained model as it would give suitable results in relation to literature.
Thank you for your help!