Dear FreeSurfer Experts,

I ran FreeSurfer 5.1.0 and FreeSurfer 5.2.0 on identical set of 161 subjects, and I'm interested in rh_superior_temporal_sulcus_thickness in particular.

Previously, the mean thickness is 2.24 mm in 5.1.0; now it is 3.28 mm in 5.2.0. They are significantly different, t(160) = 56.71.

The correlation between the two versions is r = .33 

Is this something possible?? I can't see what went wrong in my procedures.

Thanks!

Daniel