Dear SPMers,
I am working on SPM8 for fMRI analysis.
I am trying to create a brain template from subjects brains using DARTEL tool. But during "Normalise to MNI space" step, I don't know what to choose between "few subjects" or "many subjects" in the parameter "select according to".
For fMRI studies, it's recommended "few subjects". I've 37 subjects. Is that few or many ? All subjects have the same number of scans but have a different flow field each.
What is your opinion: should I choose "few subjects" or "many subjects" ?
Thank you in advance for your response.
Bests,
Marine
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