MCFLIRT does correct for subvoxel motion, but only for whole-brain
rigid-body motion. If you do not have any bulk motion of the brain,
due to your immobilization, then MCFLIRT probably won't do anything.
It won't be able to correct for non-rigid pulsatile motions.
All the best,
Mark
On Friday, March 19, 2004, at 05:04 pm, Michael Lipton wrote:
> When I view my fmri data in cine mode using FSLview, I see absolutely
> no
> motion of the brain outline (the data are from anesthetized and
> immobilized monkeys). Some flickering of signal within the brain
> parenchyma is visible.
>
> In such a case, is motion correction (MCFLIRT) advisable. Does it
> correct
> subvoxel movement, perhaps due to heartbeat, respirations, etc., or
> just
> larger scale real head motion?
>
> Thanks,
>
> Michael
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