Re: [Freesurfer] volume, surface area, and thickness

2016-08-30 Thread Anderson M. Winkler
Hi Woo-Suk Just adding to Bruce's reply: area isn't a "technically more noisy and usually thus less sensitive" as the reviewer suggests. Area isn't noisier on its own right, and it's measured from the very same surfaces from which thickness is measured. However, there is a much larger variability

Re: [Freesurfer] volume, surface area, and thickness

2016-08-29 Thread Bruce Fischl
Hi Woo-Suk why not just do the surface analysis that they are requesting? I'm not sure what you are asking, but certainly volume = surface area * thickness in general, and so a volumetric effect can be driven by one or both of surface area and thickness cheers Bruce On Sat, 27 Aug 2016, Wo

[Freesurfer] volume, surface area, and thickness

2016-08-26 Thread Woo-Suk Tae
Dear FreeSurfer experts and developers I am confronted with some technical question of a reviewer. I am not sure about "volume = thickness-by-surface area" and the review's opinion (attached below) about volume, surface area, and thickness was correct. Any comments from FreeSurfer's experts would