Interpreting correlational tractography output file

[Ellen Nogossek]

Dear Frank,

I have a question about the output files from dsi studio that are obtained through correlational tractography. I have created a database that allows me to compare two groups longitudinally in an undirected manner (not just specifically increases or decreases). However, in my output file, I only ever get one image for each group with the caption “The connectometry analysis found tracts showing higher QA/FA in group x.” The image is labeled with dec or inc. However, if there were areas in one of my groups where there is an increase and other areas where there is a decrease at the same time, this could not be represented in this way. Does DSI Studio automatically decide whether to show only the increase or the decrease, or how do I know that there can be no increase, for example, if the jpg file for the group is named dti_fa.group.r4.fdr0.05.dec.jpg? 

Thank you very much for your time!