I ran 3dMVM and for one of my results, the activation spans across several areas of the PFC as a single cluster. We want to separate this cluster by the anatomical regions. In my lab, we have previously created a mask using existing AFNI ROIs (e.g. in the AFNI GUI selecting Define DataMode PluginDraw dataset…etc); however, I am not sure whether this would be appropriate as the atlas I have used is not listed as an option (I used SSwarper and used the MNI152_2009_template_SSW.nii.gz). If I wanted to break up my cluster based on the anatomical regions, how can I do this? I appreciate any feedback or suggestions.
Thank you very much.