Hello,
I've become confused about the direction of the transformation specified
in the talairach.xfm file.
It seems that if you manually specify the --targ and --mov volumes in
conjunction with the --xfm option, that the target must be the
talairach average to get proper alignment:
e.g.,
Yes, it is quite confusing, and like most confusing things it is
historical in nature. When tkregister was originally written by
Anders/Marty, they set it up to map from the targ RAS to the mov RAS.
From an internal standpoint, it makes sense, but it is backards when
you think about moveable
