Hi all
I am encountering a few coregistration problems. I have acquired functional
data for my main experiment in one fMRI session; in a second session, I
acquired more experimental runs and functional localizers.
I ran into two problems:
* spm doesn't seem to want to do analysis over two sessions if I only
preprocess the data up to the sliceTiming stage (no normalization nor
smoothing). I guess that's understandable as my images don't have the exact
same orientation, but is there a way to do it?
* I coregistered the functional images from both sessions to an anatomical
from one of the two sessions. When I run CheckReg, it looks very well
coregistered, so I'm happy... until I run normalization, after which my
images don't match very well any more. Is this expected, if not what am I
doing wrong?
Thanks for your help.
- Julien
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