I have done some VBM analysis (normalised with modulation) and for each
subjects output there is a
Within this file there are three numbers. I am assuming these are the GM,
WM and CSF volumes and that the units of these numbers are cm^3?
If i wanted to assess whether there was a global change in GM, WM or CSF
between repeat scans on a subject group, would it be valid to use these
figures in a two sample t-test?