Hi,
> I am analyzing imaging data from children (n=15), and for
> this I made a custom template for my population using the TOM toolbox.I
> proceeded in the following manner.I have co-registered the individual T1
> images onto the TOM template image, and then have segmented the
> co-registered T1.The resulting sn.mat was used for normalizing the
> functional images.Is this method correct?
If you (1) take along the functionals after moving the anatomical and
(2) use the priors generated by TOM as the priors for unified / new
segmentation, and (3) if you then used the resulting seg_sn.mat, then
yes. All of these processing steps are described in much detail in the
manual, in wikis, and in messages to the spm list.
> When I overlay the activations
> onto the anatomical image of individual subjects for display, some
> activations seem to fall outside.Is there any better way to display my
> results??Is it due to any error in analysis?
Did you use the normalized anatomical? Smoothing may lead to activation
"outside" of the head, but there should not be too much of that. The
easiest way is to overlay your results on the template you used, as this
also avoids a false sense of "localizability".
Cheers,
Marko
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Marko Wilke (Dr.med./M.D.)
[log in to unmask]
Universitäts-Kinderklinik University Children's Hospital
Abt. III (Neuropädiatrie) Dept. III (Pediatric neurology)
Hoppe-Seyler-Str. 1, D - 72076 Tübingen
Tel.: (+49) 07071 29-83416 Fax: (+49) 07071 29-5473
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