Hi Eran,

I believe what you want to do is a kind of ROI-to-ROI analyses where your ROIs are actually individual voxels? What you can do is locate the buildP.m file (conn/utils/otherrois). Edit the line of SideLenghts = [10 12 14 16 18 20] to 2 (assuming that your voxel dimensions are 2x2x2). When you run the script (its going to take a while), you will notice a new ROI file P1844.nii (or some such number).

You can use this file as ROI file for the analysis (it will assume that each "parcel" is an ROI; because the parcel size is equal to voxel size, you are essentially doing a ROI-to-ROI kind of analysis on voxel level).


Hope this helps


Best
Pravesh