Thanks for the reply, but I'm actually trying to create an ROI based on a point (not an activation map).
Everything with the commands below works great, as long as the radius size is 10mm or under. But whenever I increase the radius size to, say, 15, the resulting roi is distorted.
Has anyone else run into this problem?
fslmaths $FSLDIR/data/standard/MNI152_T1_2mm -mul 0 -add 1 -roi 50 1 50 1 50 1 0 1 point -odt float
fslmaths point -kernel sphere 9 -fmean sphereres -odt float
Thanks,
Lara
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