Hello all,
I am running the SPM 12b pairwise longitudinal registration processing stream (n=243) to measure GMV change between two time points and am currently at the DARTEL step where I want to align the rc1 and rc2 images from all subjects together. My question is hopefully straightforward.
In the "Run Dartel (create Templates)" GUI, do I import the rc1 and rc2 files into separate "Image" fields (thus select a "New: Images" for the rc2 files) or do I import all the images into one "Image" field (n=486)? I ran DARTEL both ways and encountered the following:
1. Both approaches took only 24 hours to complete (thought it would take much longer??).
2. Separate Image field approach produced the six templates and u_rc1* files.
3. Single Image field approach produced the six templates, u_rc1* fields AND u_rc2* files.
Thanks for your time. Christopher Nicholas
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