Hello, I could successfully use Niistat for performing a VLSM on a set of binary lesion masks and continuous behavioral data with higher scores indicating less deficit. I got the result that 1 region on the AAL atlas survived the threshold of z=-1.6 when chosing 3000 premutations and lesion volume correction. If have two questions related to the output.

1. I was expecting a positive z-value based on the instructions. How can the negative threshold be interpreted?

2. When opening the "threshZresults.nii-file" and overlaying it on the AAL atlas, additional regions and overlaying voxel to the "1 region" in the output are listed, even though to a lesser contribution. Is the threshZresults-file showing only the significant cluster or is there another way to report on the lesion locations /voxels of the associated cluster based on the niistat output?