Option for linear alignment with fMRIPrep?

1

Hello,

I’m looking to compare a new dataset to a previously-processed dataset that was aligned by affine transform - is there any option in fMRIPrep that would allow for a linear alignment rather than the non-linear warp?

Thanks in advance!

2

Unfortunately, that is not supported by fMRIPrep. The idea is to provide a best-effort preprocessing based on our current understanding of the field, not necessarily every approach that has been used in the past.

For this case, I would either consider re-processing the old dataset with fMRIPrep (it was designed not to rely on new scan sequences), or process your new dataset with your old preprocessing pipeline.

3

Understood - we’ll try another approach for this. Thanks for your quick response!

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