Hi Carolina,

I think we gave some details about the method here:

H.D. Rosas, S.Y. Leea, A.C. Bendera, A.K. Zaletaa, M. Vangelc, P. Yu, et al, Altered white matter microstructure in the corpus callosum in Huntington's disease: Implications for cortical "disconnection", Neuroimage, 49(4):2995-3004, 2010.

essentially we find the callosum as the set of white matter in which left and right hemi white matter are adjacent. We then separate it into segments along it's primary eigen-axis (which is mostly A-P). Note that we also correct the segmentation for the orientation of the midsagittal plane

cheers Bruce

On Sun, 2 Oct 2011, carolina.mr wrote:

Hi,

How is the segmentation of the corpus callosum is done? What are the proportions used? Are they equal in longitudinal lenth or it follows some a special segmentation?

Do you know how to access the map (color map / visualization) of this segments?

Thank you, Carolina