Hi Greg
> Thanks. How were the tissue probability maps were created? I went back to
> Ashburner et al 1997 "Multimodal Image Coregistration and Partitioning—A
> Unified Framework" which seems to describe this. Does this paper describe
> how the tissue probability maps used in DARTEL were created?
DARTEL just involves registration and not tissue probability maps per
se, so it really just depends on how you segment the data. The
"standard" segment button uses probability maps based on the ICBM
Tissue Probabilistic atlas:
http://www.loni.ucla.edu/Atlases/Atlas_Methods.jsp?atlas_id=7
Here is John's description of the tissue probability maps for the new
segmentation:
https://www.jiscmail.ac.uk/cgi-bin/webadmin?A2=ind1002&L=SPM&P=R97606
hope this helps,
Jonathan
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