Thank you Francois,
Apologies if I did not explain this clearly. Yes, I am sure the head model I want to use is in green before I run the source estimation. Here are the screen captures. The picture of the grid now is from the head model of that subject specifically (right click on head model/check source grid) and, as you can see, there are vertices in the area of the cerebelum for instance. However, when I right click into the source file (database picture), the option to display sources is "cortical activations/display on MRI" and, as the name states, it only displays the sources from the cortex (blurry picture). How can I make it so that I see source activations of the subcortical structures as well?
Thanks a lot,
Fran