Hi Dear FSL experts,
I am running a study of inter-subject variability of FA data due to some behavioral measurements and for motion correction I use eddy.
I understood that each run of eddy generates a different rotated bvecs for the same subject. I wonder how these differences can affect the final statistical results.
I also need to estimate the head motion in order to control the results for this artifact. What would be your suggestion for calculating the head motions? I found in the eddy_movement_rms file the displacements but what would be an efficient way to calculate the global head motion from the single displacements?
Thanks so much in advance.
Best Regards
Arman
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