Dear VBM and SPM users!
I have run into a severe problem concerning the presentation of
VBM results. The results are shifted dowmwards compared to the glass brain
(see file "result.jpg" just a dummy test for illustration of the whole
brain). In the mailing list I have read that others have
had the same problem but when using their own made templates. I am using
the standard templates for VBM5.
I have checked that all images are aligned to the AC-PC line before
segmenting.
I have checked all smwc1*.img images with Check Reg and compared them to
the templates, they all have the same orientation and size.
I have run analyses without the implicit mask to make sure that one faulty
image does not mask the others.
I tried using VBM5.1 for segmenting, using the "center of mass" approach,
resulting in a slightly smaller, but still, offset (see
file "centerofmass.jpg").
Does anybody know what is wrong here?
Carl Johan Ekman, MD
Karolinska Institute
Stockholm, Sweden
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