Dear Fiona,
If I'm not mistaken this is the moment where you have to select your ROI
files - .mat files with spheres / anatomical masks that you want the
data extracted for. Have you specified those in your steps?
Best,
Jacek Matuszewski
W dniu 2016-10-21 20:51, FAN Sin Ying napisaĆ(a):
> Dear all,
>
> I was trying to use marsbar to work out the percent signal change for
> ROIs drawn
> in our lab. The following were my steps involved:
>
> Design -> Set design from file --> SPM.mat was selected
> Data -> Extract ROI (full options)
> ROIs selected from files
> Yes to 'Use SPM design'
> 'Images from' -> 'SPM design' was chosen
> 'Scaling from' -> 'Raw data' was chosen
> 'Scale grant mean to' -> was set to 0
> Results --> 'Estimate results'
>
> Then a window popped up and asked me to 'select ROI data' again. I
> don't know
> what files I am supposed to choose. Anyone has any ideas?
> Many thanks.
>
> Best,
> Fiona
>
>
>
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