[Mne_analysis] customizing the source space

[dgw]

Well, the later is trivial to do just specify which Brodmann area each 
vertex corresponds to and create labels for them (FreeSurfer 5.1.0 does 
create estimated labels of some Brodmann areas by default).

To do the Former you could do all the work of the later and then average 
/sum (depending on your assumptions) the forward solutions of each 
label. You would then need to write your data out to a forward solution 
(I don't know of any available code for this) (or just use this info to 
calculate everything with your own code).

D

Jeff Eriksen wrote:
> I worked a bit learning MNE last Oct-Nov, then had to do other things 
> for a while. Now I am diving back into MNE, trying to relearn what I did 
> last fall. One new area I am curious about is how to make a customized 
> source space. Reading the V2.9 Dec 2007 manual sections 3.5 and 5.4 it 
> seems one can use the "traditional" or "icosahedral" methods. The latter 
> is clear to me, but the "traditional" method is not – what do you mean 
> by traditional method here?
> 
> What I really want is to be able to pre-specify functional areas and use 
> them as the basic elements of the source space. We are considering 
> functional networks defined by fMRI experiments, but for the sake of 
> argument we can here consider Brodmann areas. Can you imagine or suggest 
> a way that I could use an individual subject's Brodmann areas as the 
> source space? At one extreme would be assigning a single dipole to each 
> Brodman area in one hemisphere. At the other would be to model each 
> Brodmann area as a set of adjacent dipoles uniformly covering it, but 
> linked as a unit.
> 
> Thanks,
> -Jeff
> 
> 
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