Dear SPMer's, While performing morphometric analysis between two groups of subjects both using VBM and TBM, I am getting differences in the results in few of the regions, i.e. some regions that show gray matter atrophy in VBM are absent in the TBM analysis and vice-versa. How can I explain such finding? Thanks and regards, Shilpi Modi, Scientist C, NMR Research Centre, INMAS, Delhi, India