Dear Joaquim,

I would like to extract effect sizes from some pre-defined ROIs. However, the sdm always warned that my mask files have a wrong size. Which voxel and brain size should I use to create the masks?

I have also tried the "Create mask" function in SDM. The extraction worked well in this case, but the mask only has 1 voxel. Is it possible to create a circular mask with a required radius (e.g., 5mm)?

Thank you very much!
Florian