Dear FreeSurfers,

Thanks for the previous reply on what the white.K and white.H are. I would like to make an analysis in Qdec using one of these measures. However, I didn't find much information online so I would like to ask you 3 final things:

1. Which of the two measures (mean, gaussian) is more suitable for an analysis of white matter volume/curvature?

2. How can I apply some smoothing to the white.K and white.H files to be able to make an analysis in Qdec?

3. Should I include ITV as a covariate in these analyses?

Thank you so much!