Hello Donald,
Thank you very much for the response. However, I am still a novice user of FSL and was wondering whether I could ask a couple of follow-up questions.
I assume what you a referring to is to run independent TBSS analyses, up to the tbss_3_postreg stage, for each time point in order to get a mean FA image for the group at each time-point.
After a mean image is created for each group, how do I go about creating a difference image? Is this done using FSL maths?
After I create the difference image, I assume I would simply run tbss_4_prestats on it (as per usual) and randomise.
Regards,
Gershon.
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