Sorry for the newbie question, but how can I limit the search angle in flirt? I am trying to do a 7 dof registration of a low-resolution functional volume to a high-resolution anatomical volume. Nominally there should be less than a degree of rotation about the anterior-posterior axis, but flirt is adding approximately 5 degrees of rotation. I had thought I might fix this with "-searchry -1 1" or "-searchry 0 0", but neither of these seems to have any effect.
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