fMRI question

[burnettmed]

I am running Brainstorm on a Windows XP machine using Matlab 7.0.1 with the SPM5 toolbox. I am trying to run the fMRI functions from the MRITool GUI and am unable to find dedicated tutorial info on this. My goal is to eventually overlay a warped SPM map on top of my warped tesselations displaying EEG sources. My problem is that I am unable to get the fused MRI/SPM map to display in MRIViewer. As best I can tell, it does the interpolation calculations just fine, but then I get the dreaded hourglass over the GUI. Questions:
1. My MRI is 256x256xsomething pixels and my SPM map is 64x64xsomething. Does it matter that they are different resolutions?
2. Both studies are in radiological orientation. Does orientation matter?
3. If I do get this working, can I use the fused MRI as I would a normal MRI and warp to the electrodes, etc.?
4. Can I use the fused MRI to generate a headmodel in Brainstorm for source localization (i.e. is it smart enough to know the SPM stuff is an overlay), or should I use the plain MRI without the SPM overlay?

I guess I could pick this out of the code as I have for the other problems I have had, but I'm running out of time...any help is appreciated.

Thanks! Melinda Burnett

[Sylvain]

Hi Melinda,

thanks for your post. In this version of BrainStorm, all you can do is loading an SPM map into the MRIViewer (using the rightmost menu) and add an interpolated version of the MEG/EEG sources in the MR volume (in the same menu, select 'Add MEG/EEG sources'). We have not worked at the projection onto the cortical surface of the fMRI results so far.

Let us know how this is all going.