It is possible to do this, but note that you may need to use more smoothing.
VBM relies on partial volume effects to work properly, so be cautious of
blobs found in large solid regions of white matter.
Best regards,
-John
On Tuesday 26 June 2001 02:50, Wu, Ming-Ting wrote:
> > Dear SPM group:
> The VBM by SPM99 seems to focus on gray matter comparison after
> segmentation. Is it possible / reliable to compare the white matter,
> especially the corpus callosum between two groups by this method?
>
> Sincerely
>
> Ming-Ting
> ===========================================
> Ming-Ting Wu, MD
> Kaohsiung VGH, 813, Taiwan.
> Fax: 886-7-3468301.
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--
Dr John Ashburner.
Wellcome Department of Cognitive Neurology.
12 Queen Square, London WC1N 3BG, UK.
tel: +44 (0)20 78337491 or +44 (0)20 78373611 x4381
fax: +44 (0)20 78131420
http://www.fil.ion.ucl.ac.uk/~john
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