Hi Gang,

I'd like to calculate resting-state correlations between every voxel of a big region of interest and the rest of the brain to look at how the connectivity of this region changes as you move from anterior to posterior voxels. Instead of looking at the correlations for every single voxel, first, I was going to create clusters based on their correlation ranges. I guess what I need to do is to calculate correlations between every voxel and all the other voxels within that region and then clusterize somehow based on those correlation results. I was wondering what the best approach would be or if there's a specific afni function that could help me with this.

Please let me know if that doesn't make sense. Thanks a lot!