Hi,

Is there a surface-way, maybe by using the thickness map, to calculate the gray matter volume of a functionally defined surface ROI (in std.141 surf)? Or by using 3dSurf2Vol to map back to volume to calculate the gray matter volume? Is this as accurate as calculating on surface directly?

And does it make sense to compare the gray matter volume between two group, say young and old, under the same std.141.surf functionally defined ROI? The (same std.surf ROI) = (same std.surf nodes number) ≠ (same std.surf area)? So it does not make sense?

Thanks,

2086

Edited 1 time(s). Last edit at 07/20/2021 10:55PM by EXP.2086.