Hi Alan & Knut,
Isn't GI a function of surface area, i.e. GI = SurfaceAreaPial/SurfaceAreaHull,
e.g.:
http://www.frontiersin.org/files/Articles/668/fninf-03-025/image_m/fninf-03-025-g003.jpg
The hull area (denominator) normalizes for scale, so I would not expect the GI
and surface area to be i
Hi Knut:
Gryification and Surface Area are two completely different things. Surface
Area, as measured by FreeSurfer, gives you the area of the surface (roughly
length x breadth) of a given region of interest: e.g., Pars triangularis.
It is measured in millimeter squared.
Gyrfication index, by con
