Hello all,
I am new to FSL so I apologize if this is old hat. I am using MCFLIRT on a multiband EPI dataset with 272 volumes. The data is 2mm isotropic and has a 1.25s rep time.
I am running mcflirt with default parameters: mcflirt -in <infile> -out <outfile>
The resulting plots of translations and rotations have a strange oscillations less then 0.1mm in magnitude that repeat at a rate of ~0.5 Hz. These oscillations are not in all three axis. I have used MCFLIRT before and not seen them. Does anyone know what they are and/or how to get rid of them? I have included the plots above.
Thank you for all your help,
Olivia
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