Dear Mina,
> Hello, I wanted to make a simple VOI in my GLM results, when I
> encounter this error message. Any idea what it might be due to?
> previously in my other study it worked well, and I never had a
> problem.
>
> ??? Cant open image file.
> Error in ==> spm_get_data at 30
> Y(i,:) = spm_sample_vol(V(i),XYZ(1,:),XYZ(2,:),XYZ(3,:),0);
> Error in ==> spm_regions at 161
> y = spm_get_data(SPM.xY.VY,xSPM.XYZ(:,Q));
> ??? Error while evaluating uicontrol Callback.
Could it be that you moved the raw-data (i.e. the smoothed files), renamed a folder, or that you run the analysis from a different computer, where the folder with your raw-data has a different drive-letter or is mounted to a differnt mountpoint?
VOI works only, when the data are still at the same place where they have been during the GLM estimation. I think, Volkmar Glauche has some add-ons for that case, where you can re-map your raw-data in case that you have moved them.
Good luck,
Karsten
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Karsten Specht, PhD
Department of Biological and Medical Psychology
& National Competence Centre for functional MRI
University of Bergen
Jonas Lies vei 91
5009 Bergen
Norway
Tel.: +47-555-86279
Fax: +47-555-89872
[log in to unmask]
http://fmri.uib.no/
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