Hi Freesurfer team,

I used Qdec to do my group analysis (MCI vs Control). I also analyzed fMRI data with SPM. My plan is to investigate functional activity where there are group differences in thickness. Is there a way to make a ROI using Qdec and to transfer it into SPM/MarsBar format (.mat) so I can get the functional beta values in this ROI?

I tried to make functional ROIs with MarsBar by taking the coordinates of the thickness clusters, but the size and shape of those ROIs are kind of arbitrary. Do you have anything to suggest?