Dear All,
For group analysis, two possible pipelines can be used when using Dartel
for registration:
1) individual statistical analysis in individual referentials for all
subjects.
Then, applying Dartel deformation fields to the individual contrasts to
be in the common referential (Dartel template) and then RFX analysis.
In this case, the smoothing is performed in the individual referential
before individual analysis.
2) application of individual Dartel deformation fields to individual
functional images. Then individual statistical analysis in the common
referential.
and then RFX analysis. Here the smoothing is performed after deformation
field application (and before individual statistical analysis).
The results obtained are different.
What is the best way to proceed and for which reasons ?
Thank for your answer
Michel
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